From 147e7f0a6ffdaa3df7174864bf3fa19e0c7a1ff2 Mon Sep 17 00:00:00 2001
From: Jon Cahill-Torre <j.cahilltorre@f5.com>
Date: Thu, 12 Sep 2024 17:32:47 +0100
Subject: [PATCH] docs: split code blocks

---
 source/certificates.rst                   |   3 +
 source/configuration/index.rst            |  24 ++
 source/controlapi.rst                     |   9 +
 source/howto/apollo.rst                   |  12 +
 source/howto/cakephp.rst                  |   3 +
 source/howto/catalyst.rst                 |   9 +
 source/howto/certbot.rst                  |  11 +
 source/howto/djangochannels.rst           |   9 +
 source/howto/docker.rst                   |  25 ++
 source/howto/dokuwiki.rst                 |   9 +
 source/howto/express.rst                  |  12 +
 source/howto/grafana.rst                  |   9 +
 source/howto/guillotina.rst               |   2 +
 source/howto/jira.rst                     |  39 ++
 source/howto/koa.rst                      |   9 +
 source/howto/laravel.rst                  |   3 +
 source/howto/lumen.rst                    |   3 +
 source/howto/mediawiki.rst                |   6 +
 source/howto/mercurial.rst                |  18 +
 source/howto/modules.rst                  |  29 ++
 source/howto/moin.rst                     |  42 ++
 source/howto/opengrok.rst                 |   3 +
 source/howto/plone.rst                    |  12 +
 source/howto/quart.rst                    |   3 +
 source/howto/rails.rst                    |   3 +
 source/howto/responder.rst                |   3 +
 source/howto/reviewboard.rst              |   3 +
 source/howto/roundcube.rst                |   3 +
 source/howto/samples.rst                  |  52 +++
 source/howto/security.rst                 |  45 +++
 source/howto/source.rst                   | 174 ++++++++-
 source/howto/springboot.rst               |   6 +
 source/howto/starlette.rst                |   4 +
 source/howto/symfony.rst                  |   3 +
 source/howto/trac.rst                     |  33 ++
 source/howto/yii.rst                      |   6 +
 source/howto/zope.rst                     |  27 ++
 source/installation.rst                   | 442 ++++++++++++++++++++++
 source/news/2022/unit-1.29.0-released.rst |  12 +
 source/troubleshooting.rst                |  17 +
 source/unitctl.rst                        |   9 +
 41 files changed, 1145 insertions(+), 1 deletion(-)

diff --git a/source/certificates.rst b/source/certificates.rst
index cd3d3b4e..4a5f1db4 100644
--- a/source/certificates.rst
+++ b/source/certificates.rst
@@ -133,6 +133,9 @@ as **GET**-table JSON using **/certificates**:
 
       # curl -X GET --unix-socket :nxt_ph:`/path/to/control.unit.sock <Path to Unit's control socket in your installation>` \
              http://localhost/certificates/:nxt_hint:`bundle <Certificate bundle name>`/chain/0/
+
+   .. code-block:: console
+
       # curl -X GET --unix-socket :nxt_ph:`/path/to/control.unit.sock <Path to Unit's control socket in your installation>` \
              http://localhost/certificates/:nxt_hint:`bundle <Certificate bundle name>`/chain/0/subject/alt_names/0/
 
diff --git a/source/configuration/index.rst b/source/configuration/index.rst
index cdfdcdea..a8c6ff95 100644
--- a/source/configuration/index.rst
+++ b/source/configuration/index.rst
@@ -421,6 +421,8 @@ The **tickets** option works as follows:
 
            LoYjFVxpUFFOj4TzGkr5MsSIRMjhuh8RCsVvtIJiQ12FGhn0nhvvQsEND1+OugQ7
 
+  .. code-block:: console
+
      $ openssl rand -base64 80
 
            GQczhdXawyhTrWrtOXI7l3YYUY98PrFYzjGhBbiQsAWgaxm+mbkm4MmZZpDw0tkK
@@ -1971,14 +1973,20 @@ from the incoming requests:
 
        HTTP/1.1 201 Created
 
+.. code-block:: console
+
    $ curl -i -X PUT http://localhost
 
        HTTP/1.1 202 Accepted
 
+.. code-block:: console
+
    $ curl -i -X POST http://localhost
 
        HTTP/1.1 203 Non-Authoritative Information
 
+.. code-block:: console
+
    $ curl -i --head http://localhost  # Bumpy ride ahead, no route defined
 
        HTTP/1.1 404 Not Found
@@ -2047,6 +2055,9 @@ it is considered empty.
    .. code-block:: console
 
          $ curl http://localhost/blog     # Targets the 'blog' app
+
+   .. code-block:: console
+
          $ curl http://localhost/sandbox  # Targets the 'sandbox' app
 
    A different approach puts the **Host** header field
@@ -2777,11 +2788,16 @@ won't be resolved.
    .. code-block:: console
 
       $ mkdir -p /www/localhost/static/ && cd /www/localhost/static/
+
+   .. code-block:: console
+
       $ cat > index.html << EOF
 
             > index.html
             > EOF
 
+   .. code-block:: console
+
       $ ln -s index.html /www/localhost/static/symlink
 
    If symlink resolution is enabled
@@ -2794,6 +2810,8 @@ won't be resolved.
 
             index.html
 
+   .. code-block:: console
+
       $ curl http://localhost/symlink
 
             index.html
@@ -2819,6 +2837,8 @@ won't be resolved.
 
             index.html
 
+   .. code-block:: console
+
       $ curl http://localhost/symlink
 
             <!DOCTYPE html><title>Error 403</title><p>Error 403.
@@ -3666,6 +3686,8 @@ and set the **memory.high** limit:
 
        cpuset cpu io memory pids
 
+.. code-block:: console
+
    # echo 1G > /sys/fs/cgroup:nxt_hint:`/staging/app <cgroup's path set in Unit configuration>`/memory.high
 
 For more details
@@ -3986,6 +4008,8 @@ and rebuild the app.
 
               0
 
+     .. code-block:: console
+
         $ go env -w CGO_ENABLED=1
 
    - If you installed Unit from the
diff --git a/source/controlapi.rst b/source/controlapi.rst
index 04b1d54f..c0461147 100644
--- a/source/controlapi.rst
+++ b/source/controlapi.rst
@@ -181,6 +181,9 @@ OpenAPI specification
    .. code-block:: console
 
       $ docker build --tag=unit-openapi -f unit-openapi.Dockerfile .
+
+   .. code-block:: console
+
       $ docker run -d -p 8765:8765 -p 8080:8080 unit-openapi
 
    Next, open **http://localhost:8765** in a browser.
@@ -366,6 +369,8 @@ provided you supply the right JSON:
    # curl -X PUT -d '{ "pass": "applications/blogs" }' --unix-socket \
           :nxt_ph:`/path/to/control.unit.sock <Path to Unit's control socket in your installation>` http://localhost/config/listeners/127.0.0.1:8300
 
+.. code-block:: console
+
    # curl -X PUT -d '"applications/blogs"' --unix-socket :nxt_ph:`/path/to/control.unit.sock <Path to Unit's control socket in your installation>` \
           http://localhost/config/listeners/127.0.0.1:8300/pass
 
@@ -460,9 +465,13 @@ adding a URI-based route to the development version of the app:
        ]
        EOF
 
+.. code-block:: console
+
    # curl -X PUT --data-binary @config.json --unix-socket \
           :nxt_ph:`/path/to/control.unit.sock <Path to Unit's control socket in your installation>` http://localhost/config/routes
 
+.. code-block:: console
+
    # curl -X PUT -d '"routes"' --unix-socket \
           :nxt_ph:`/path/to/control.unit.sock <Path to Unit's control socket in your installation>` 'http://localhost/config/listeners/*:8400/pass'
 
diff --git a/source/howto/apollo.rst b/source/howto/apollo.rst
index 8fbecb3f..e44db602 100644
--- a/source/howto/apollo.rst
+++ b/source/howto/apollo.rst
@@ -23,8 +23,17 @@ using Unit:
    .. code-block:: console
 
       $ mkdir -p :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`
+
+   .. code-block:: console
+
       $ cd :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`
+
+   .. code-block:: console
+
       $ npm install @apollo/server graphql
+
+   .. code-block:: console
+
       # npm link unit-http
 
 #. Create the `middleware
@@ -35,6 +44,9 @@ using Unit:
    .. code-block:: console
 
       $ cd :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`
+
+   .. code-block:: console
+
       $ npm init
 
    Next, add the following code:
diff --git a/source/howto/cakephp.rst b/source/howto/cakephp.rst
index 337daee9..3ca551c6 100644
--- a/source/howto/cakephp.rst
+++ b/source/howto/cakephp.rst
@@ -17,6 +17,9 @@ To run apps based on the `CakePHP <https://cakephp.org>`_ framework using Unit:
    .. code-block:: console
 
       $ cd :nxt_ph:`/path/to/ <Path where the application directory will be created; use a real path in your configuration>`
+
+   .. code-block:: console
+
       $ composer create-project --prefer-dist cakephp/app:4.* :nxt_ph:`app <Arbitrary app name; becomes the application directory name>`
 
    This creates the app's directory tree at **/path/to/app/**.  Its
diff --git a/source/howto/catalyst.rst b/source/howto/catalyst.rst
index 80dae1d1..fd8f359e 100644
--- a/source/howto/catalyst.rst
+++ b/source/howto/catalyst.rst
@@ -21,8 +21,17 @@ To run apps based on the `Catalyst
    .. code-block:: console
 
       $ cd :nxt_ph:`/path/to/ <Path where the application directory will be created; use a real path in your configuration>`
+
+   .. code-block:: console
+
       $ catalyst.pl :nxt_ph:`app <Arbitrary app name; becomes the application directory name>`
+
+   .. code-block:: console
+
       $ cd app
+
+   .. code-block:: console
+
       $ perl Makefile.PL
 
    Make sure the app's **.psgi** file includes the **lib/**
diff --git a/source/howto/certbot.rst b/source/howto/certbot.rst
index 586f6803..a5d491a7 100644
--- a/source/howto/certbot.rst
+++ b/source/howto/certbot.rst
@@ -101,6 +101,8 @@ Generating Certificates
       # cat /etc/letsencrypt/live/www.example.com/fullchain.pem  \
             /etc/letsencrypt/live/www.example.com/privkey.pem > :nxt_ph:`bundle1.pem <Arbitrary certificate bundle's filename>`
 
+   .. code-block:: console
+
       # curl -X PUT --data-binary @:nxt_ph:`bundle1.pem <Certificate bundle's filename>`  \
              --unix-socket :nxt_ph:`/path/to/control.unit.sock <Path to Unit's control socket in your installation>`  \
              http://localhost/certificates/:nxt_ph:`certbot1 <Certificate bundle name in Unit's configuration>`
@@ -170,9 +172,13 @@ For manual renewal and rollover:
             1: Keep the existing certificate for now
             2: Renew & replace the cert (may be subject to CA rate limits)
 
+   .. code-block:: console
+
       # cat /etc/letsencrypt/live/www.example.com/fullchain.pem  \
             /etc/letsencrypt/live/www.example.com/privkey.pem > :nxt_ph:`bundle2.pem <Arbitrary certificate bundle's filename>`
 
+   .. code-block:: console
+
       # curl -X PUT --data-binary @:nxt_ph:`bundle2.pem <Certificate bundle's filename>`  \
              --unix-socket :nxt_ph:`/path/to/control.unit.sock <Path to Unit's control socket in your installation>`  \
              http://localhost/certificates/:nxt_ph:`certbot2 <Certificate bundle name in Unit's configuration>`
@@ -229,9 +235,12 @@ For manual renewal and rollover:
       # cat /etc/letsencrypt/live/cdn.example.com/fullchain.pem  \
             /etc/letsencrypt/live/cdn.example.com/privkey.pem > :nxt_hint:`cdn.example.com.pem <Arbitrary certificate bundle's filename>`
 
+   .. code-block:: console
+
       # cat /etc/letsencrypt/live/www.example.com/fullchain.pem  \
             /etc/letsencrypt/live/www.example.com/privkey.pem > :nxt_hint:`www.example.com.pem <Arbitrary certificate bundle's filename>`
 
+   .. code-block:: console
 
       # curl -X PUT --data-binary @:nxt_hint:`cdn.example.com.pem <Certificate bundle's filename>`  \
              --unix-socket :nxt_ph:`/path/to/control.unit.sock <Path to Unit's control socket in your installation>`  \
@@ -241,6 +250,8 @@ For manual renewal and rollover:
                  "success": "Certificate chain uploaded."
              }
 
+   .. code-block:: console
+
       # curl -X PUT --data-binary @:nxt_hint:`www.example.com.pem <Certificate bundle's filename>`  \
              --unix-socket :nxt_ph:`/path/to/control.unit.sock <Path to Unit's control socket in your installation>`  \
              http://localhost/certificates/:nxt_hint:`www.example.com <Certificate bundle name in Unit's configuration>`
diff --git a/source/howto/djangochannels.rst b/source/howto/djangochannels.rst
index ff57b89d..d48e87f0 100644
--- a/source/howto/djangochannels.rst
+++ b/source/howto/djangochannels.rst
@@ -21,8 +21,17 @@ To run Django apps using the |app| `framework
     .. code-block:: console
 
        $ cd :nxt_ph:`/path/to/venv/ <Path to the virtual environment; use a real path in your configuration>`
+
+    .. code-block:: console
+
        $ source bin/activate
+
+    .. code-block:: console
+
        $ pip install channels
+
+    .. code-block:: console
+
        $ deactivate
 
 #. Create a Django project.  Here, we'll use the `tutorial chat app
diff --git a/source/howto/docker.rst b/source/howto/docker.rst
index 4cceab10..ec694ddc 100644
--- a/source/howto/docker.rst
+++ b/source/howto/docker.rst
@@ -64,7 +64,13 @@ official **hello, world** app:
 .. code-block:: console
 
    $ cd :nxt_ph:`/path/to/app/ <Directory where all app-related files will be stored; use a real path in your configuration>`
+
+.. code-block:: console
+
    $ mkdir webapp
+
+.. code-block:: console
+
    $ cat << EOF > webapp/wsgi.py
 
    from flask import Flask
@@ -91,6 +97,9 @@ app:
 .. code-block:: console
 
    $ mkdir config
+
+.. code-block:: console
+
    $ cat << EOF > config/config.json
 
    {
@@ -117,7 +126,13 @@ Finally, let's create **log/** and **state/** directories to store Unit
 .. code-block:: console
 
    $ mkdir log
+
+.. code-block:: console
+
    $ touch log/unit.log
+
+.. code-block:: console
+
    $ mkdir state
 
 Our file structure so far:
@@ -315,12 +330,16 @@ Unit's state:
 
    $ docker build --tag=:nxt_hint:`unit-expressapp <Arbitrary image tag>` .
 
+.. code-block:: console
+
    $ export UNIT=$(                                                                             \
          docker run -d                                                                          \
          --mount type=bind,src="$(pwd)/myapp/config.json",dst=/docker-entrypoint.d/config.json  \
          -p 8080:8080 unit-expressapp                                                           \
      )
 
+.. code-block:: console
+
    $ curl -X GET localhost:8080
 
         Hello, Unit!
@@ -358,16 +377,22 @@ the :ref:`control API <configuration-api>`:
      ...
      EOF
 
+.. code-block:: console
+
    $ export UNIT=$(                                                                     \
          docker run -d                                                                  \
          --mount type=bind,src="$(pwd)/myapp/new-config.json",dst=/cfg/new-config.json  \
          unit-expressapp                                                                \
      )
 
+.. code-block:: console
+
    $ docker exec -ti $UNIT curl -X PUT --data-binary @/cfg/new-config.json  \
             --unix-socket /var/run/control.unit.sock  \
             http://localhost/config
 
+.. code-block:: console
+
    $ docker exec -ti $UNIT curl -X PUT -d '"/www/newapp/"'  \
             --unix-socket  /var/run/control.unit.sock  \
             http://localhost/config/applications/express/working_directory
diff --git a/source/howto/dokuwiki.rst b/source/howto/dokuwiki.rst
index 95b30bd5..3273497c 100644
--- a/source/howto/dokuwiki.rst
+++ b/source/howto/dokuwiki.rst
@@ -21,8 +21,17 @@ using Unit:
    .. code-block:: console
 
       $ mkdir -p :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>` && cd :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`
+
+   .. code-block:: console
+
       $ wget https://download.dokuwiki.org/src/dokuwiki/dokuwiki-stable.tgz
+
+   .. code-block:: console
+
       $ tar xvzf dokuwiki-stable.tgz :nxt_hint:`--strip-components <Avoids creating a redundant subdirectory>`=1
+
+   .. code-block:: console
+
       $ rm dokuwiki-stable.tgz
 
 #. .. include:: ../include/howto_change_ownership.rst
diff --git a/source/howto/express.rst b/source/howto/express.rst
index f1e9213f..8095f738 100644
--- a/source/howto/express.rst
+++ b/source/howto/express.rst
@@ -23,8 +23,17 @@ using Unit:
    .. code-block:: console
 
       $ mkdir -p :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`
+
+   .. code-block:: console
+
       $ cd :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`
+
+   .. code-block:: console
+
       $ npm install express --save
+
+   .. code-block:: console
+
       # npm link unit-http
 
 #. Create your Express `app
@@ -34,6 +43,9 @@ using Unit:
    .. code-block:: console
 
       $ cd :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`
+
+   .. code-block:: console
+
       $ npm init
 
    Next, add your application code:
diff --git a/source/howto/grafana.rst b/source/howto/grafana.rst
index 6c34c0ab..c430d384 100644
--- a/source/howto/grafana.rst
+++ b/source/howto/grafana.rst
@@ -25,7 +25,13 @@ so we can :ref:`configure it <configuration-go>` to run on Unit.
    .. code-block:: console
 
       $ cd :nxt_hint:`$GOPATH/src/github.com/grafana/grafana <The path where the previous step saves the application's files>`
+
+   .. code-block:: console
+
       $ curl -O https://unit.nginx.org/_downloads/grafana.patch
+
+   .. code-block:: console
+
       $ patch -p1 < grafana.patch
 
    Or update the sources manually.  In **conf/defaults.ini**:
@@ -133,6 +139,9 @@ so we can :ref:`configure it <configuration-go>` to run on Unit.
    .. code-block:: console
 
       # chown -R :nxt_hint:`unit:unit <User and group that Unit's router runs as by default>` :nxt_hint:`$GOPATH/src/github.com/grafana/grafana <Path to the application's files>`
+
+   .. code-block:: console
+
       # chown :nxt_hint:`unit:unit <User and group that Unit's router runs as by default>` :nxt_hint:`$GOPATH/bin/grafana-server <Path to the application's executable>`
 
    .. note::
diff --git a/source/howto/guillotina.rst b/source/howto/guillotina.rst
index a0f4034b..10c97761 100644
--- a/source/howto/guillotina.rst
+++ b/source/howto/guillotina.rst
@@ -100,6 +100,8 @@ To run apps built with the `Guillotina
 
             {"@type":"Container","id":"container","title":"container"}
 
+   .. code-block:: console
+
       $ curl --user root:root http://localhost/db/container
 
             {
diff --git a/source/howto/jira.rst b/source/howto/jira.rst
index e5583e95..d62db912 100644
--- a/source/howto/jira.rst
+++ b/source/howto/jira.rst
@@ -24,7 +24,13 @@ To run `Atlassian Jira <https://www.atlassian.com/software/jira>`_ using Unit:
    .. code-block:: console
 
       $ cd :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`
+
+   .. code-block:: console
+
       $ curl https://www.atlassian.com/software/jira/downloads/binary/atlassian-jira-software-8.19.1.tar.gz -O -C -
+
+   .. code-block:: console
+
       $ tar xzf atlassian-jira-core-8.19.1.tar.gz --strip-components 1
 
 #. Download |app|'s third-party dependencies to the **lib** subdirectory:
@@ -32,15 +38,45 @@ To run `Atlassian Jira <https://www.atlassian.com/software/jira>`_ using Unit:
    .. code-block:: console
 
       $ cd lib/
+
+   .. code-block:: console
+
       $ curl https://github.com/mar0x/unit-transaction-init/releases/download/2.0/transaction-init-2.0.jar -O -C -
+
+   .. code-block:: console
+
       $ curl https://repo1.maven.org/maven2/com/atomikos/atomikos-util/5.0.8/atomikos-util-5.0.8.jar -O -C -
+
+   .. code-block:: console
+
       $ curl https://repo1.maven.org/maven2/com/atomikos/transactions-api/5.0.8/transactions-api-5.0.8.jar -O -C -
+
+   .. code-block:: console
+
       $ curl https://repo1.maven.org/maven2/com/atomikos/transactions-jdbc/5.0.8/transactions-jdbc-5.0.8.jar -O -C -
+
+   .. code-block:: console
+
       $ curl https://repo1.maven.org/maven2/com/atomikos/transactions-jta/5.0.8/transactions-jta-5.0.8.jar -O -C -
+
+   .. code-block:: console
+
       $ curl https://repo1.maven.org/maven2/com/atomikos/transactions/5.0.8/transactions-5.0.8.jar -O -C -
+
+   .. code-block:: console
+
       $ curl https://repo1.maven.org/maven2/javax/transaction/jta/1.1/jta-1.1.jar -O -C -
+
+   .. code-block:: console
+
       $ curl https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-jndi/11.0.6/jetty-jndi-10.0.6.jar -O -C -
+
+   .. code-block:: console
+
       $ curl https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-plus/11.0.6/jetty-plus-10.0.6.jar -O -C -
+
+   .. code-block:: console
+
       $ curl https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-util/11.0.6/jetty-util-10.0.6.jar -O -C -
 
    Later, these **.jar** files will be listed in the **classpath**
@@ -53,6 +89,9 @@ To run `Atlassian Jira <https://www.atlassian.com/software/jira>`_ using Unit:
    .. code-block:: console
 
       $ cd :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`
+
+   .. code-block:: console
+
       $ sed -i 's#comp/env/UserTransaction#comp/UserTransaction#g'  \
             atlassian-jira/WEB-INF/classes/entityengine.xml
 
diff --git a/source/howto/koa.rst b/source/howto/koa.rst
index 7636bf43..fbb9a953 100644
--- a/source/howto/koa.rst
+++ b/source/howto/koa.rst
@@ -21,8 +21,17 @@ To run apps built with the `Koa <https://koajs.com>`_ web framework using Unit:
    .. code-block:: console
 
       $ mkdir -p :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`
+
+   .. code-block:: console
+
       $ cd :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`
+
+   .. code-block:: console
+
       $ npm install koa
+
+   .. code-block:: console
+
       # npm link unit-http
 
 #. Let’s try a version of the `tutorial app
diff --git a/source/howto/laravel.rst b/source/howto/laravel.rst
index 0ea16c34..9bd79656 100644
--- a/source/howto/laravel.rst
+++ b/source/howto/laravel.rst
@@ -20,6 +20,9 @@ To run apps based on the `Laravel <https://laravel.com>`_ framework using Unit:
    .. code-block:: console
 
       $ cd :nxt_ph:`/path/to/ <Path where the application directory will be created; use a real path in your configuration>`
+
+   .. code-block:: console
+
       $ composer create-project laravel/laravel :nxt_ph:`app <Arbitrary app name; becomes the application directory name>`
 
 #. .. include:: ../include/howto_change_ownership.rst
diff --git a/source/howto/lumen.rst b/source/howto/lumen.rst
index 789e3849..18fa4039 100644
--- a/source/howto/lumen.rst
+++ b/source/howto/lumen.rst
@@ -21,6 +21,9 @@ Unit:
    .. code-block:: console
 
       $ cd :nxt_ph:`/path/to/ <Path where the application directory will be created; use a real path in your configuration>`
+
+   .. code-block:: console
+
       $ composer create-project laravel/lumen :nxt_ph:`app <Arbitrary app name; becomes the application directory name>`
 
 #. .. include:: ../include/howto_change_ownership.rst
diff --git a/source/howto/mediawiki.rst b/source/howto/mediawiki.rst
index e518c5dc..65666d90 100644
--- a/source/howto/mediawiki.rst
+++ b/source/howto/mediawiki.rst
@@ -137,7 +137,13 @@ documentation platform using Unit:
    .. code-block:: console
 
       $ chmod 600 LocalSettings.php
+
+   .. code-block:: console
+
       # chown :nxt_ph:`unit:unit <Values from Step 3>` LocalSettings.php
+
+   .. code-block:: console
+
       # mv LocalSettings.php :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`
 
 #. After installation, add a match condition to the first step to disable
diff --git a/source/howto/mercurial.rst b/source/howto/mercurial.rst
index 2c88d68e..f4c6e60d 100644
--- a/source/howto/mercurial.rst
+++ b/source/howto/mercurial.rst
@@ -67,11 +67,29 @@ control system using Unit:
    .. code-block:: console
 
       $ hg config --edit
+
+   .. code-block:: console
+
       $ hg clone http://localhost/ project/
+
+   .. code-block:: console
+
       $ cd project/
+
+   .. code-block:: console
+
       $ touch hg_rocks.txt
+
+   .. code-block:: console
+
       $ hg add
+
+   .. code-block:: console
+
       $ hg commit -m 'Official: Mercurial on Unit rocks!'
+
+   .. code-block:: console
+
       $ hg push
 
    .. image:: ../images/hg.png
diff --git a/source/howto/modules.rst b/source/howto/modules.rst
index 093ecec3..44d3e08b 100644
--- a/source/howto/modules.rst
+++ b/source/howto/modules.rst
@@ -138,13 +138,31 @@ adjust the command samples as needed to fit your scenario.
          .. code-block:: console
 
             # apt update
+
+         .. code-block:: console
+
             # apt install :nxt_hint:`ca-certificates apt-transport-https debian-archive-keyring <Needed to install the php7.3 package from the PHP repo>`
+
+         .. code-block:: console
+
             # curl --output /usr/share/keyrings/php-keyring.gpg  \
                   :nxt_hint:`https://packages.sury.org/php/apt.gpg <Adding the repo key to make it usable>`
+
+         .. code-block:: console
+
             # echo "deb [signed-by=/usr/share/keyrings/php-keyring.gpg]  \
                   https://packages.sury.org/php/ buster main" > /etc/apt/sources.list.d/php.list
+
+         .. code-block:: console
+
             # apt update
+
+         .. code-block:: console
+
             # apt install php7.3
+
+         .. code-block:: console
+
             # apt install :nxt_hint:`php-dev libphp-embed <Needed to build the module and the package>`
 
       #. Create a staging directory for your package:
@@ -223,6 +241,9 @@ adjust the command samples as needed to fit your scenario.
          .. code-block:: console
 
             # yum install -y php-7.3.8
+
+         .. code-block:: console
+
             # yum install php-devel php-embedded
 
       #. Install RPM development tools and prepare the directory structure:
@@ -230,6 +251,9 @@ adjust the command samples as needed to fit your scenario.
          .. code-block:: console
 
             # yum install -y rpmdevtools
+
+         .. code-block:: console
+
             $ rpmdev-setuptree
 
       #. Create a **.spec** `file
@@ -239,6 +263,9 @@ adjust the command samples as needed to fit your scenario.
          .. code-block:: console
 
             $ cd ~/rpmbuild/SPECS
+
+         .. code-block:: console
+
             $ rpmdev-newspec unit-php7.3
 
       #. Run :program:`unitd --version` and note the :program:`./configure`
@@ -318,4 +345,6 @@ adjust the command samples as needed to fit your scenario.
                 Wrote: /home/user/rpmbuild/RPMS/<arch>/unit-php7.3-<moduleversion>.<arch>.rpm
                 ...
 
+         .. code-block:: console
+
             # yum install -y /home/user/rpmbuild/RPMS/<arch>/unit-php7.3-<moduleversion>.<arch>.rpm
diff --git a/source/howto/moin.rst b/source/howto/moin.rst
index 94b203a4..dd01f142 100644
--- a/source/howto/moin.rst
+++ b/source/howto/moin.rst
@@ -48,10 +48,25 @@ To run the `MoinMoin <https://moinmo.in/MoinMoinWiki>`_ wiki engine using Unit:
          .. code-block:: console
 
             $ cd :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`
+
+         .. code-block:: console
+
             $ mkdir single/
+
+         .. code-block:: console
+
             $ cp :nxt_hint:`wiki/config/wikiconfig.py <Wiki instance configuration>` single/
+
+         .. code-block:: console
+
             $ cp -r wiki/data/ single/data/
+
+         .. code-block:: console
+
             $ cp -r wiki/underlay/ single/underlay/
+
+         .. code-block:: console
+
             $ cp :nxt_hint:`wiki/server/moin.wsgi <WSGI module to run, extension should be changed for proper discovery>` single/moin.py
 
          Next, `edit
@@ -67,14 +82,41 @@ To run the `MoinMoin <https://moinmo.in/MoinMoinWiki>`_ wiki engine using Unit:
          .. code-block:: console
 
             $ cd :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`
+
+         .. code-block:: console
+
             $ mkdir multi/ multi/wiki1/ multi/wiki2/
+
+         .. code-block:: console
+
             $ cp wiki/config/wikifarm/* multi/
+
+         .. code-block:: console
+
             $ cp :nxt_hint:`wiki/config/wikiconfig.py <Wiki instance configuration>` multi/wiki1.py
+
+         .. code-block:: console
+
             $ cp :nxt_hint:`wiki/config/wikiconfig.py <Wiki instance configuration>` multi/wiki2.py
+
+         .. code-block:: console
+
             $ cp -r wiki/data/ multi/wiki1/data/
+
+         .. code-block:: console
+
             $ cp -r wiki/data/ multi/wiki2/data/
+
+         .. code-block:: console
+
             $ cp -r wiki/underlay/ multi/wiki1/underlay/
+
+         .. code-block:: console
+
             $ cp -r wiki/underlay/ multi/wiki2/underlay/
+
+         .. code-block:: console
+
             $ cp :nxt_hint:`wiki/server/moin.wsgi <WSGI module to run, extension should be changed for proper discovery>` multi/moin.py
 
          Next, `edit
diff --git a/source/howto/opengrok.rst b/source/howto/opengrok.rst
index 863f226a..9fdbb02c 100644
--- a/source/howto/opengrok.rst
+++ b/source/howto/opengrok.rst
@@ -17,6 +17,9 @@ To run the `OpenGrok
    .. code-block:: console
 
       $ mkdir -p :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`{src,data,dist,etc,log}
+
+   .. code-block:: console
+
       $ tar -C :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`dist --strip-components=1 -xzf opengrok-:nxt_ph:`X.Y.Z <Specific OpenGrok version>`.tar.gz
 
    Our servlet container is Unit so we can repackage the **source.war**
diff --git a/source/howto/plone.rst b/source/howto/plone.rst
index ce4e98fd..9adbdaee 100644
--- a/source/howto/plone.rst
+++ b/source/howto/plone.rst
@@ -23,9 +23,18 @@ To run the `Plone <https://plone.org>`_ content management system using Unit:
    .. code-block:: console
 
       $ mkdir /tmp/plone && cd /tmp/plone/
+
+   .. code-block:: console
+
       $ wget https://launchpad.net/plone/:nxt_ph:`A.B <Plone version>`/:nxt_ph:`A.B.C <Plone version>`/+download/Plone-:nxt_ph:`A.B.C <Plone version>`-UnifiedInstaller-1.0.tgz
+
+   .. code-block:: console
+
       $ tar xzvf Plone-:nxt_ph:`A.B.C <Plone version>`-UnifiedInstaller-1.0.tgz  \
             :nxt_hint:`--strip-components <Avoids creating a redundant subdirectory>`=1
+
+   .. code-block:: console
+
       $ ./install.sh --target=:nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`  \
                      --with-python=:nxt_ph:`/full/path/to/python <Full pathname of the Python executable used to create Plone's virtual environment>`  \
                      standalone
@@ -73,6 +82,9 @@ To run the `Plone <https://plone.org>`_ content management system using Unit:
    .. code-block:: console
 
       $ cd :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`zinstance/
+
+   .. code-block:: console
+
       $ bin/buildout -c wsgi.cfg
 
             ...
diff --git a/source/howto/quart.rst b/source/howto/quart.rst
index 64ce8165..c596b70f 100644
--- a/source/howto/quart.rst
+++ b/source/howto/quart.rst
@@ -71,6 +71,9 @@ To run apps built with the `Quart
 
             <body><h1>Hello, World!</h1></body>
 
+
+   .. code-block:: console
+
       $ wscat -c ws://localhost/ws
 
             < Hello, World!
diff --git a/source/howto/rails.rst b/source/howto/rails.rst
index 43abaeba..41644cfd 100644
--- a/source/howto/rails.rst
+++ b/source/howto/rails.rst
@@ -18,6 +18,9 @@ using Unit:
    .. code-block:: console
 
       $ cd :nxt_ph:`/path/to/ <Path where the application directory will be created; use a real path in your configuration>`
+
+   .. code-block:: console
+
       $ rails new :nxt_ph:`app <Arbitrary app name; becomes the application directory name>`
 
    This creates the app's directory tree at **/path/to/app/**; its
diff --git a/source/howto/responder.rst b/source/howto/responder.rst
index 803d497f..85274bce 100644
--- a/source/howto/responder.rst
+++ b/source/howto/responder.rst
@@ -74,6 +74,9 @@ To run apps built with the `Responder
 
             Hello, World!
 
+
+   .. code-block:: console
+
       $ curl http://localhost/hello/JohnDoe
 
             Hello, JohnDoe!
diff --git a/source/howto/reviewboard.rst b/source/howto/reviewboard.rst
index 78d7e915..eb612adf 100644
--- a/source/howto/reviewboard.rst
+++ b/source/howto/reviewboard.rst
@@ -54,6 +54,9 @@ To run the `Review Board
    .. code-block:: console
 
       $ chmod u+w :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`htdocs/media/uploaded/
+
+   .. code-block:: console
+
       $ chmod u+w :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`data/
 
 #. Next, :ref:`prepare <configuration-python>` the |app| configuration for Unit
diff --git a/source/howto/roundcube.rst b/source/howto/roundcube.rst
index 387b0f5b..693b748e 100644
--- a/source/howto/roundcube.rst
+++ b/source/howto/roundcube.rst
@@ -77,6 +77,9 @@ To run the `Roundcube <https://roundcube.net>`_ webmail platform using Unit:
 
       # curl -X PUT -d ':nxt_ph:`"/path/to/app/ <Path to the application directory; use a real path in your configuration>`public_html$uri"' --unix-socket \
             :nxt_ph:`/path/to/control.unit.sock <Path to Unit's control socket in your installation>` :nxt_hint:`http://localhost/config/routes/1/action/share <Path to the app's document root in our configuration; mind that route steps are zero-indexed>`
+
+   .. code-block:: console
+
       # curl -X PUT -d '":nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`public_html/"' --unix-socket \
             :nxt_ph:`/path/to/control.unit.sock <Path to Unit's control socket in your installation>` :nxt_hint:`http://localhost/config/applications/roundcube/root <Path to the app's root option in Unit's control API>`
 
diff --git a/source/howto/samples.rst b/source/howto/samples.rst
index e6b3a7d7..e496fb7f 100644
--- a/source/howto/samples.rst
+++ b/source/howto/samples.rst
@@ -60,6 +60,8 @@ Upload the :ref:`app config <configuration-go>` to Unit and test it:
      }
      }' --unix-socket :nxt_ph:`/path/to/control.unit.sock <Path to Unit's control socket in your installation>` http://localhost/config/
 
+.. code-block:: console
+
    $ curl http://localhost:8080
 
        Hello, Go on Unit!
@@ -148,6 +150,8 @@ Upload the :ref:`app config <configuration-java>` to Unit and test it:
      }
      }' --unix-socket :nxt_ph:`/path/to/control.unit.sock <Path to Unit's control socket in your installation>` http://localhost/config/
 
+.. code-block:: console
+
    $ curl http://localhost:8080
 
        Hello, JSP on Unit!
@@ -224,7 +228,13 @@ Make it executable and link the Node.js language package you've :ref:`installed
 .. code-block:: console
 
    $ cd /www
+
+.. code-block:: console
+
    $ chmod +x app.js
+
+.. code-block:: console
+
    $ npm link unit-http
 
 Upload the :ref:`app config <configuration-nodejs>` to Unit and test it:
@@ -246,6 +256,8 @@ Upload the :ref:`app config <configuration-nodejs>` to Unit and test it:
      }
      }' --unix-socket :nxt_ph:`/path/to/control.unit.sock <Path to Unit's control socket in your installation>` http://localhost/config/
 
+.. code-block:: console
+
    $ curl http://localhost:8080
 
        Hello, Node.js on Unit!
@@ -320,6 +332,8 @@ Upload the :ref:`app config <configuration-perl>` to Unit and test it:
      }
      }' --unix-socket :nxt_ph:`/path/to/control.unit.sock <Path to Unit's control socket in your installation>` http://localhost/config/
 
+.. code-block:: console
+
    $ curl http://localhost:8080
 
        Hello, Perl on Unit!
@@ -450,6 +464,8 @@ Upload the :ref:`app config <configuration-python>` to Unit and test it:
      }
      }' --unix-socket :nxt_ph:`/path/to/control.unit.sock <Path to Unit's control socket in your installation>` http://localhost/config/
 
+.. code-block:: console
+
    $ curl http://localhost:8080
 
        Hello, Python on Unit!
@@ -517,6 +533,8 @@ Upload the :ref:`app config <configuration-ruby>` to Unit and test it:
      }
      }' --unix-socket :nxt_ph:`/path/to/control.unit.sock <Path to Unit's control socket in your installation>` http://localhost/config/
 
+.. code-block:: console
+
    $ curl http://localhost:8080
 
        Hello, Ruby on Unit!
@@ -588,7 +606,13 @@ WebAssembly (Wasm)
       .. code-block:: console
 
          $ git clone https://github.com/sunfishcode/hello-wasi-http
+
+      .. code-block:: console
+
          $ cd hello-wasi-http
+
+      .. code-block:: console
+
          $ cargo component build
 
       The output of the build command should be similar to this:
@@ -675,7 +699,13 @@ WebAssembly (Wasm)
       .. code-block:: console
 
          $ cargo init --lib wasm_on_unit
+
+      .. code-block:: console
+
          $ cd wasm_on_unit/
+
+      .. code-block:: console
+
          $ cargo add unit-wasm
 
       Append the following to **Cargo.toml**:
@@ -725,6 +755,8 @@ WebAssembly (Wasm)
                }
          }' --unix-socket :nxt_ph:`/path/to/control.unit.sock <Path to Unit's control socket in your installation>` http://localhost/config/
 
+      .. code-block:: console
+
          $ curl http://localhost:8080
 
                * Welcome to WebAssembly in Rust on Unit! [libunit-wasm (0.3.0/0x00030000)] *
@@ -753,9 +785,21 @@ WebAssembly (Wasm)
       .. code-block:: console
 
          $ git clone https://github.com/nginx/unit-wasm/
+
+      .. code-block:: console
+
          $ cd unit-wasm
+
+      .. code-block:: console
+
          $ make help                                               # Explore your options first
+
+      .. code-block:: console
+
          $ make WASI_SYSROOT=:nxt_ph:`/path/to/wasi-sysroot/ <wasi-sysroot directory>` examples       # C examples
+
+      .. code-block:: console
+
          $ make WASI_SYSROOT=:nxt_ph:`/path/to/wasi-sysroot/ <wasi-sysroot directory>` examples-rust  # Rust examples
 
       .. note::
@@ -773,9 +817,17 @@ WebAssembly (Wasm)
 
             $ wget -O- https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-20/libclang_rt.builtins-wasm32-wasi-20.0.tar.gz \
                   | tar zxf -                  # Unpacks to lib/wasi/ in the current directory
+
+         .. code-block:: console
+
             $ clang -print-runtime-dir         # Double-check the run-time directory, which is OS-dependent
 
                   :nxt_ph:`/path/to/runtime/dir <run-time directory>`/linux
 
+         .. code-block:: console
+
             # mkdir :nxt_ph:`/path/to/runtime/dir <run-time directory>`/wasi  # Note the last part of the pathname
+
+         .. code-block:: console
+
             # cp :nxt_hint:`lib/wasi/ <wget output above>`libclang_rt.builtins-wasm32.a :nxt_ph:`/path/to/runtime/dir <run-time directory>`/wasi/
diff --git a/source/howto/security.rst b/source/howto/security.rst
index b706ae85..5dfa3c36 100644
--- a/source/howto/security.rst
+++ b/source/howto/security.rst
@@ -85,6 +85,9 @@ safe.
    .. code-block:: console
 
       $ ssh -N -L :nxt_hint:`./here.sock <Local socket>`::nxt_ph:`/path/to/control.unit.sock <Socket on the Unit server; use a real path in your command>` root@:nxt_hint:`unit.example.com <Unit server hostname>` &
+
+   .. code-block:: console
+
       $ curl --unix-socket :nxt_hint:`./here.sock <Use the local socket to configure Unit>`
 
             {
@@ -103,6 +106,9 @@ safe.
    .. code-block:: console
 
       # unitd --control 203.0.113.14:8080
+
+   .. code-block:: console
+
       $ curl 203.0.113.14:8080
 
             {
@@ -119,6 +125,9 @@ safe.
    .. code-block:: console
 
       # unitd --control 127.0.0.1:8080
+
+   .. code-block:: console
+
       $ curl 203.0.113.14:8080
 
           curl: (7) Failed to connect to 203.0.113.14 port 8080: Connection refused
@@ -146,10 +155,14 @@ safe.
             --state DIRECTORY    set state directory name
                                  default: ":nxt_ph:`/default/path/to/unit/state/ <Build-time setting, can be overridden>`"
 
+   .. subs-code-block:: console
+
       $ ps ax | grep unitd
 
             ... unit: main v|version| [... --state :nxt_ph:`/path/to/unit/state/ <Make sure to check for runtime overrides>` ...]
 
+   .. subs-code-block:: console
+
       # ls -l :nxt_ph:`/path/to/unit/state/ <If it's overridden, use the runtime setting>`
 
             drwx------ 2 root root 4096 ...
@@ -230,6 +243,8 @@ notorious **777**, instead assigning them on a need-to-know basis.
             --group GROUP        set non-privileged processes to run as specified group
                                  default: user's primary group
 
+   .. subs-code-block:: console
+
       $ ps ax | grep unitd
 
             ... unit: main v|version| [... --user :nxt_ph:`unit_user <Make sure to check for runtime overrides>` --group :nxt_ph:`unit_group <Make sure to check for runtime overrides>` ...]
@@ -272,8 +287,17 @@ notorious **777**, instead assigning them on a need-to-know basis.
       .. code-block:: console
 
          # :nxt_hint:`useradd <Add user account without home directory>` -M app_user
+
+      .. code-block:: console
+
          # groupadd app_group
+
+      .. code-block:: console
+
          # :nxt_hint:`usermod <Deny interactive login>` -L app_user
+
+      .. code-block:: console
+
          # :nxt_hint:`usermod <Add user to the group>` -a -G app_group app_user
 
       Even if you run a single app, this helps if you add more apps or need to
@@ -299,6 +323,8 @@ notorious **777**, instead assigning them on a need-to-know basis.
 
                :nxt_hint:`drwxr-xr-x <Permissions are OK>`  some_user some_group  path
 
+      .. code-block:: console
+
          # ls -l /path/
 
                :nxt_hint:`drwxr-x--- <Permissions are too restrictive>`  some_user some_group  to
@@ -324,8 +350,17 @@ notorious **777**, instead assigning them on a need-to-know basis.
       .. code-block:: console
 
          # :nxt_hint:`chown <Assign ownership for the app code>` -R app_user:app_group :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your command>`
+
+      .. code-block:: console
+
          # :nxt_hint:`chown <Assign ownership for the static files>` -R app_user:app_group :nxt_ph:`/path/to/static/app/files/ <Can be outside the app directory tree; use a real path in your command>`
+
+      .. code-block:: console
+
          # find :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your command>` -type d -exec :nxt_hint:`chmod <Add read/execute permissions to app code directories for user and group>` u=rx,g=rx,o= {} \;
+
+      .. code-block:: console
+
          # find :nxt_ph:`/path/to/static/app/files/ <Can be outside the app directory tree; use a real path in your command>` -type d -exec :nxt_hint:`chmod <Add read/execute permissions to static file directories for user and group>` u=rx,g=rx,o= {} \;
 
    #. If the app needs to update specific directories or files, make sure
@@ -356,6 +391,9 @@ notorious **777**, instead assigning them on a need-to-know basis.
       .. code-block:: console
 
          # find :nxt_ph:`/path/to/app/code/ <Path to the application's code directory; use a real path in your command>` -type f -exec :nxt_hint:`chmod <Add read rights to app code for user and group>` u=r,g=r,o= {} \;
+
+      .. code-block:: console
+
          # find :nxt_ph:`/path/to/static/app/files/ <Can be outside the app directory tree; use a real path in your command>` -type f -exec :nxt_hint:`chmod <Add read rights to static files for user and group>` u=r,g=r,o= {} \;
 
    #. For :ref:`external <modules-emb>` apps, additionally make the app code or
@@ -364,6 +402,9 @@ notorious **777**, instead assigning them on a need-to-know basis.
       .. code-block:: console
 
          # find :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your command>` -type f -exec :nxt_hint:`chmod <Add read and execute rights to app code for user and group>` u=rx,g=rx,o= {} \;
+
+      .. code-block:: console
+
          # find :nxt_ph:`/path/to/static/app/files/ <Can be outside the app directory tree; use a real path in your command>` -type f -exec :nxt_hint:`chmod <Add read rights to static files for user and group>` u=r,g=r,o= {} \;
 
    #. To run a single app, :doc:`configure <../configuration/index>` Unit as follows:
@@ -688,6 +729,8 @@ disk space.
 
       # :nxt_hint:`chown <Assign ownership to the log user>` log_user:log_group :nxt_ph:`/path/to/unit.log <If it's overridden, use the runtime setting>`
 
+   .. code-block:: console
+
       # :nxt_hint:`curl <Enable access log in the Unit configuration at the given path>` -X PUT -d '":nxt_ph:`/path/to/access.log <Use a real path in your configuration>`"'  \
              --unix-socket :nxt_ph:`/path/to/control.unit.sock <Path to Unit's control socket>` \
              http://localhost/config/access_log
@@ -696,6 +739,8 @@ disk space.
                 "success": "Reconfiguration done."
             }
 
+   .. code-block:: console
+
       # :nxt_hint:`chown <Assign ownership to the log user>` log_user:log_group :nxt_ph:`/path/to/access.log <Use a real path in your command>`
 
    If you change the log file ownership, adjust your :program:`logrotate`
diff --git a/source/howto/source.rst b/source/howto/source.rst
index c7c1cf73..e3c1d781 100644
--- a/source/howto/source.rst
+++ b/source/howto/source.rst
@@ -31,17 +31,47 @@ revision numbers, respectively); omit the packages you won't use.
       .. code-block:: console
 
          # apt install build-essential
+
+      .. code-block:: console
+
          # apt install golang
+
+      .. code-block:: console
+
          # apt install curl && \
                curl -sL https://deb.nodesource.com/setup_:nxt_ph:`VERSION <Node.js 8.11 or later is supported>`.x | bash - && \
                apt install nodejs
+
+      .. code-block:: console
+
          # npm install -g node-gyp
+
+      .. code-block:: console
+
          # apt install php-dev libphp-embed
+
+      .. code-block:: console
+
          # apt install libperl-dev
+
+      .. code-block:: console
+
          # apt install python:nxt_ph:`X <Both Python 2 and Python 3 are supported>`-dev
+
+      .. code-block:: console
+
          # apt install ruby-dev ruby-rack
+
+      .. code-block:: console
+
          # apt install openjdk-:nxt_ph:`X <Java 8 or later is supported. Different JDKs may be used>`-jdk
+
+      .. code-block:: console
+
          # apt install libssl-dev
+
+      .. code-block:: console
+
          # apt install libpcre2-dev
 
 
@@ -50,17 +80,47 @@ revision numbers, respectively); omit the packages you won't use.
       .. code-block:: console
 
          # yum install gcc make
+
+      .. code-block:: console
+
          # yum install golang
+
+      .. code-block:: console
+
          # yum install curl && \
                curl -sL https://rpm.nodesource.com/setup_:nxt_ph:`VERSION <Node.js 8.11 or later is supported>`.x | bash - && \
                yum install nodejs
+
+      .. code-block:: console
+
          # npm install -g node-gyp
+
+      .. code-block:: console
+
          # yum install php-devel php-embedded
+
+      .. code-block:: console
+
          # yum install perl-devel perl-libs
+
+      .. code-block:: console
+
          # yum install python:nxt_ph:`X <Both Python 2 and Python 3 are supported>`-devel
+
+      .. code-block:: console
+
          # yum install ruby-devel rubygem-rack
+
+      .. code-block:: console
+
          # yum install java-:nxt_ph:`X.Y.Z <Java 8 or later is supported. Different JDKs may be used>`-openjdk-devel
+
+      .. code-block:: console
+
          # yum install openssl-devel
+
+      .. code-block:: console
+
          # yum install pcre2-devel
 
 
@@ -71,14 +131,41 @@ revision numbers, respectively); omit the packages you won't use.
       .. code-block:: console
 
          # cd /usr/ports/lang/go/ && make install clean
+
+      .. code-block:: console
+
          # cd /usr/ports/www/node/ && make install clean
+
+      .. code-block:: console
+
          # cd /usr/ports/www/npm/ && make install clean && npm i -g node-gyp
+
+      .. code-block:: console
+
          # cd /usr/ports/lang/php:nxt_ph:`XY <PHP versions 5, 7, and 8 are supported>`/ && make install clean
+
+      .. code-block:: console
+
          # cd /usr/ports/lang/perl:nxt_ph:`X.Y <Perl 5.12 or later is supported>`/ && make install clean
+
+      .. code-block:: console
+
          # cd /usr/ports/lang/python/ && make install clean
+
+      .. code-block:: console
+
          # cd /usr/ports/lang/ruby:nxt_ph:`XY <Ruby 2.0 or later is supported>`/ && make install clean
+
+      .. code-block:: console
+
          # cd /usr/ports/java/openjdk:nxt_ph:`X <Java 8 or later is supported. Different JDKs may be used>`/ && make install clean
+
+      .. code-block:: console
+
          # cd /usr/ports/security/openssl/ && make install clean
+
+      .. code-block:: console
+
          # cd /usr/ports/devel/pcre2/ && make install clean
 
       Packages:
@@ -86,13 +173,37 @@ revision numbers, respectively); omit the packages you won't use.
       .. code-block:: console
 
          # pkg install go
+
+      .. code-block:: console
+
          # pkg install node && pkg install npm && npm i -g node-gyp
+
+      .. code-block:: console
+
          # pkg install php:nxt_ph:`XY <PHP versions 5, 7, and 8 are supported>`
+
+      .. code-block:: console
+
          # pkg install perl:nxt_ph:`X <Perl 5.12 or later is supported>`
+
+      .. code-block:: console
+
          # pkg install python
+
+      .. code-block:: console
+
          # pkg install ruby:nxt_ph:`XY <Ruby 2.0 is supported>`
+
+      .. code-block:: console
+
          # pkg install openjdk:nxt_ph:`X <Java 8 or later is supported. Different JDKs may be used>`
+
+      .. code-block:: console
+
          # pkg install openssl
+
+      .. code-block:: console
+
          # pkg install pcre2
 
 
@@ -101,11 +212,29 @@ revision numbers, respectively); omit the packages you won't use.
       .. code-block:: console
 
          # pkg install gcc
+
+      .. code-block:: console
+
          # pkg install golang
+
+      .. code-block:: console
+
          # pkg install php-:nxt_ph:`XY <PHP versions 5, 7, and 8 are supported>`
+
+      .. code-block:: console
+
          # pkg install ruby
+
+      .. code-block:: console
+
          # pkg install jdk-:nxt_ph:`X <Java 8 or later is supported. Different JDKs may be used>`
+
+      .. code-block:: console
+
          # pkg install openssl
+
+      .. code-block:: console
+
          # pkg install pcre
 
       Also, use :program:`gmake` instead of :program:`make` when :ref:`building
@@ -124,7 +253,13 @@ revision numbers, respectively); omit the packages you won't use.
    .. code-block:: console
 
       $ git clone https://github.com/nginx/njs.git
+
+   .. code-block:: console
+
       $ cd njs
+
+   .. code-block:: console
+
       $ git checkout -b 0.8.2 0.8.2
 
    Next, configure and build the :program:`njs` binaries. Make sure to use the
@@ -179,6 +314,9 @@ revision numbers, respectively); omit the packages you won't use.
           .. code-block:: console
 
              $ cd ..
+
+          .. code-block:: console
+
              $ wget -O- https://github.com/bytecodealliance/wasmtime/releases/download/v12.0.0/wasmtime-v12.0.0-x86_64-linux-c-api.tar.xz \
                    | tar Jxf -  # Unpacks to the current directory
 
@@ -397,7 +535,13 @@ structure <source-dir>`:
        .. code-block:: console
 
           $ ./configure --control=127.0.0.1:8080
+
+       .. code-block:: console
+
           $ ./configure --control=[::1]:8080
+
+       .. code-block:: console
+
           $ ./configure --control=unix:/path/to/control.unit.sock  # Note the unix: prefix
 
        .. warning::
@@ -808,6 +952,9 @@ To build and install Unit's executables and language modules that you have
 .. code-block:: console
 
    $ make
+
+.. code-block:: console
+
    # make install
 
 Mind that **make install** requires setting up Unit's :ref:`directory
@@ -818,7 +965,13 @@ To run Unit from the build directory tree without installing:
 .. code-block:: console
 
    $ ./configure --prefix=./build
+
+.. code-block:: console
+
    $ make
+
+.. code-block:: console
+
    $ ./build/sbin/unitd
 
 You can also build and install language modules individually; the specific
@@ -842,8 +995,10 @@ configuration, run :command:`make <module basename>` and :command:`make
 .. code-block:: console
 
    $ make :nxt_hint:`perl-5.20 <This is the --module option value from ./configure perl>`
-   # make :nxt_hint:`perl-5.20 <This is the --module option value from ./configure perl>`-install
 
+.. code-block:: console
+
+   # make :nxt_hint:`perl-5.20 <This is the --module option value from ./configure perl>`-install
 
 .. _source-bld-src-ext:
 
@@ -857,6 +1012,9 @@ configuration, run :command:`make <go>-install` and :command:`make
 .. code-block:: console
 
    # make :nxt_hint:`go <This is the --go option value from ./configure go>`-install
+
+.. code-block:: console
+
    # make :nxt_hint:`node <This is the --node option value from ./configure nodejs>`-install
 
 .. note::
@@ -887,9 +1045,17 @@ If you customized the executable pathname with :option:`!--go` or
 .. code-block:: console
 
    $ ./configure nodejs --node=:nxt_hint:`/usr/local/bin/node8.12 <Executable pathname>`
+
+.. code-block:: console
+
    # make :nxt_hint:`/usr/local/bin/node8.12 <Executable pathname becomes a part of the target>`-install
 
+.. code-block:: console
+
    $ ./configure go --go=:nxt_hint:`/usr/local/bin/go1.7 <Executable pathname>`
+
+.. code-block:: console
+
    # make :nxt_hint:`/usr/local/bin/go1.7 <Executable pathname becomes a part of the target>`-install
 
 
@@ -941,7 +1107,13 @@ counterparts, see :ref:`here <source-config-src>`.
        .. code-block:: console
 
           # unitd --control 127.0.0.1:8080
+
+       .. code-block:: console
+
           # unitd --control [::1]:8080
+
+       .. code-block:: console
+
           # unitd --control :nxt_hint:`unix:/path/to/control.unit.sock <Note the unix: prefix>`
 
    * - **--control-mode**
diff --git a/source/howto/springboot.rst b/source/howto/springboot.rst
index 904aabf6..1d0d6058 100644
--- a/source/howto/springboot.rst
+++ b/source/howto/springboot.rst
@@ -65,6 +65,9 @@ To run apps based on the `Spring Boot
    .. code-block:: console
 
       $ cd :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`demo/
+
+   .. code-block:: console
+
       $ ./gradlew bootWar
 
    If you chose `Maven <https://maven.apache.org>`__:
@@ -72,6 +75,9 @@ To run apps based on the `Spring Boot
    .. code-block:: console
 
       $ cd :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`demo/
+
+   .. code-block:: console
+
       $ ./mvnw package
 
    .. note::
diff --git a/source/howto/starlette.rst b/source/howto/starlette.rst
index e465497c..3607e743 100644
--- a/source/howto/starlette.rst
+++ b/source/howto/starlette.rst
@@ -115,10 +115,14 @@ framework using Unit:
 
             Hello, world!
 
+   .. code-block:: console
+
       $ curl http://localhost/user/me
 
             Hello, John Doe!
 
+   .. code-block:: console
+
       $ wscat -c ws://localhost/ws
 
             Connected (press CTRL+C to quit)
diff --git a/source/howto/symfony.rst b/source/howto/symfony.rst
index 26fe5f25..a9a7c1f6 100644
--- a/source/howto/symfony.rst
+++ b/source/howto/symfony.rst
@@ -16,6 +16,9 @@ To run apps built with the `Symfony <https://symfony.com>`_ framework using Unit
    .. code-block:: console
 
       $ cd :nxt_ph:`/path/to/ <Path where the application directory will be created; use a real path in your configuration>`
+
+   .. code-block:: console
+
       $ symfony new --demo :nxt_ph:`app <Arbitrary app name>`
 
    This creates the app's directory tree at **/path/to/app/**.  Its
diff --git a/source/howto/trac.rst b/source/howto/trac.rst
index 4c04de14..d82183ef 100644
--- a/source/howto/trac.rst
+++ b/source/howto/trac.rst
@@ -30,8 +30,17 @@ Unit:
    .. code-block:: console
 
       $ mkdir -p :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`
+
+   .. code-block:: console
+
       $ cd :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`
+
+   .. code-block:: console
+
       $ virtualenv venv
+
+   .. code-block:: console
+
       $ source venv/bin/activate
 
 #. Next, `install Trac <https://trac.edgewall.org/wiki/TracInstall>`_ and its
@@ -41,14 +50,38 @@ Unit:
    .. code-block:: console
 
       $ pip install Trac
+
+   .. code-block:: console
+
       $ pip install babel docutils genshi \
                     pygments pytz textile             # optional dependencies
+
+   .. code-block:: console
+
       $ mkdir :nxt_ph:`static/ <Arbitrary directory name>`                                 # will store Trac's /chrome/ tree
+
+   .. code-block:: console
+
       $ mkdir :nxt_ph:`trac_env/ <Arbitrary directory name>`
+
+   .. code-block:: console
+
       $ trac-admin trac_env/ initenv                  # initialize Trac environment
+
+   .. code-block:: console
+
       $ trac-admin trac_env/ deploy static/           # extract Trac's static files
+
+   .. code-block:: console
+
       $ mv static/htdocs static/chrome                # align static file paths
+
+   .. code-block:: console
+
       $ rm -rf static/cgi-bin/                        # remove unneeded files
+
+   .. code-block:: console
+
       $ deactivate
 
 #. Unit :ref:`uses WSGI <configuration-python>` to run Python apps, so a
diff --git a/source/howto/yii.rst b/source/howto/yii.rst
index c0fe9960..7f1a2705 100644
--- a/source/howto/yii.rst
+++ b/source/howto/yii.rst
@@ -26,6 +26,9 @@ versions 1.1 or 2.0 using Unit:
          .. code-block:: console
 
             $ cd :nxt_ph:`/path/to/ <Partial path to the application directory; use a real path in your configuration>`
+
+         .. code-block:: console
+
             $ composer create-project --prefer-dist yiisoft/yii2-app-basic :nxt_ph:`app <Arbitrary app name>`
 
          This creates the app's directory tree at **/path/to/app/**.
@@ -130,6 +133,9 @@ versions 1.1 or 2.0 using Unit:
          .. code-block:: console
 
             $ git clone git@github.com:yiisoft/yii.git :nxt_ph:`/path/to/yii1.1/ <Arbitrary framework path>`
+
+         .. code-block:: console
+
             $ :nxt_ph:`/path/to/yii1.1/ <Arbitrary framework path>`framework/yiic webapp :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`
 
          This creates the app's directory tree at **/path/to/app/**.
diff --git a/source/howto/zope.rst b/source/howto/zope.rst
index 293198c6..bd4c9001 100644
--- a/source/howto/zope.rst
+++ b/source/howto/zope.rst
@@ -29,9 +29,21 @@ Unit:
          .. code-block:: console
 
             $ pip install -U pip wheel zc.buildout
+
+         .. code-block:: console
+
             $ cd :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`
+
+         .. code-block:: console
+
             $ wget https://pypi.org/packages/source/Z/Zope/Zope-:nxt_ph:`A.B.C <Zope version>`.tar.gz
+
+         .. code-block:: console
+
             $ tar xfvz Zope-:nxt_ph:`A.B.C <Zope version>`.tar.gz :nxt_hint:`--strip-components <Avoids creating a redundant subdirectory>`=1
+
+         .. code-block:: console
+
             $ buildout
 
          Next, add a new configuration file named
@@ -107,11 +119,26 @@ Unit:
          .. code-block:: console
 
             $ cd :nxt_ph:`/path/to/app/ <Path to the application directory; use a real path in your configuration>`
+
+         .. code-block:: console
+
             $ :nxt_hint:`python3 --version <Make sure your virtual environment version matches the module version>`
                   Python :nxt_hint:`3.Y.Z <Major version, minor version, and revision number>`
+
+         .. code-block:: console
+
             $ python3 -m venv :nxt_hint:`venv <This is the virtual environment directory>`
+
+         .. code-block:: console
+
             $ source venv/bin/activate
+
+         .. code-block:: console
+
             $ pip install 'zope[wsgi]'
+
+         .. code-block:: console
+
             $ deactivate
 
          .. warning::
diff --git a/source/installation.rst b/source/installation.rst
index d07e605e..edce9d63 100644
--- a/source/installation.rst
+++ b/source/installation.rst
@@ -149,6 +149,9 @@ at the `npm <https://www.npmjs.com/package/unit-http>`_ registry.
    .. code-block:: console
 
       $ wget https://raw.githubusercontent.com/nginx/unit/master/tools/setup-unit && chmod +x setup-unit
+
+   .. code-block:: console
+
       # ./setup-unit repo-config
 
    Use it at your discretion;
@@ -188,8 +191,14 @@ Amazon Linux
          .. code-block:: console
 
             # yum install unit
+
+         .. code-block:: console
+
             # yum install :nxt_hint:`unit-devel <Required to install the Node.js module>` unit-jsc17 unit-perl  \
                   unit-php unit-python39 unit-python311 unit-wasm
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -229,8 +238,14 @@ Amazon Linux
          .. code-block:: console
 
             # yum install unit
+
+         .. code-block:: console
+
             # yum install :nxt_hint:`unit-devel <Required to install the Node.js module>` unit-jsc8 unit-perl  \
                   unit-php unit-python27 unit-python37 unit-wasm
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -276,8 +291,14 @@ Amazon Linux
          .. code-block:: console
 
             # yum install unit
+
+         .. code-block:: console
+
             # yum install :nxt_hint:`unit-devel <Required to install the Node.js module>` unit-jsc8 unit-perl unit-php  \
                   unit-python27 unit-python34 unit-python35 unit-python36
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -334,9 +355,18 @@ Debian
          .. code-block:: console
 
             # apt update
+
+         .. code-block:: console
+
             # apt install unit
+
+         .. code-block:: console
+
             # apt install :nxt_hint:`unit-dev <Required to install the Node.js module>` unit-jsc17 unit-perl  \
                   unit-php unit-python3.11 unit-ruby unit-wasm
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
 
@@ -385,9 +415,18 @@ Debian
          .. code-block:: console
 
             # apt update
+
+         .. code-block:: console
+
             # apt install unit
+
+         .. code-block:: console
+
             # apt install :nxt_hint:`unit-dev <Required to install the Node.js module>` unit-jsc11 unit-perl  \
                   unit-php unit-python2.7 unit-python3.9 unit-ruby unit-wasm
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
 
@@ -442,9 +481,18 @@ Debian
          .. code-block:: console
 
             # apt update
+
+         .. code-block:: console
+
             # apt install unit
+
+         .. code-block:: console
+
             # apt install :nxt_hint:`unit-dev <Required to install the Node.js module>` unit-jsc11 unit-perl  \
                   unit-php unit-python2.7 unit-python3.7 unit-ruby
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -498,9 +546,18 @@ Debian
          .. code-block:: console
 
             # apt update
+
+         .. code-block:: console
+
             # apt install unit
+
+         .. code-block:: console
+
             # apt install :nxt_hint:`unit-dev <Required to install the Node.js module>` unit-jsc8 unit-perl  \
                   unit-php unit-python2.7 unit-python3.5 unit-ruby
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -549,8 +606,14 @@ Fedora
          .. code-block:: console
 
             # yum install unit
+
+         .. code-block:: console
+
             # yum install :nxt_hint:`unit-devel <Required to install the Node.js module>` unit-jsc8 unit-jsc11 unit-perl  \
                   unit-php unit-python311 unit-ruby
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -590,8 +653,14 @@ Fedora
          .. code-block:: console
 
             # yum install unit
+
+         .. code-block:: console
+
             # yum install :nxt_hint:`unit-devel <Required to install the Node.js module>` unit-jsc8 unit-jsc11 unit-perl  \
                   unit-php unit-python311 unit-ruby unit-wasm
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -637,8 +706,14 @@ Fedora
          .. code-block:: console
 
             # yum install unit
+
+         .. code-block:: console
+
             # yum install :nxt_hint:`unit-devel <Required to install the Node.js module>` unit-jsc8 unit-jsc11 unit-perl  \
                   unit-php unit-python39 unit-python310 unit-ruby unit-wasm
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -684,8 +759,14 @@ Fedora
          .. code-block:: console
 
             # yum install unit
+
+         .. code-block:: console
+
             # yum install :nxt_hint:`unit-devel <Required to install the Node.js module>` unit-jsc8 unit-jsc11 unit-perl  \
                   unit-php unit-python39 unit-ruby
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -731,8 +812,14 @@ Fedora
          .. code-block:: console
 
             # yum install unit
+
+         .. code-block:: console
+
             # yum install :nxt_hint:`unit-devel <Required to install the Node.js module>` unit-jsc8 unit-jsc11 unit-perl  \
                   unit-php unit-python38 unit-ruby
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -779,8 +866,14 @@ Fedora
          .. code-block:: console
 
             # yum install unit
+
+         .. code-block:: console
+
             # yum install :nxt_hint:`unit-devel <Required to install the Node.js module>` unit-jsc8 unit-jsc11 unit-perl  \
                   unit-php unit-python27 unit-python37 unit-ruby
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -826,8 +919,14 @@ Fedora
          .. code-block:: console
 
             # yum install unit
+
+         .. code-block:: console
+
             # yum install :nxt_hint:`unit-devel <Required to install the Node.js module>` unit-jsc8 unit-perl  \
                   unit-php unit-python27 unit-python37 unit-ruby
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -877,8 +976,14 @@ RHEL and derivatives
          .. code-block:: console
 
             # yum install unit
+
+         .. code-block:: console
+
             # yum install :nxt_hint:`unit-devel <Required to install the Node.js module and build Go apps>` unit-go unit-jsc8 unit-jsc11  \
                   unit-perl unit-php unit-python39 unit-wasm
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -918,8 +1023,14 @@ RHEL and derivatives
          .. code-block:: console
 
             # yum install unit
+
+         .. code-block:: console
+
             # yum install :nxt_hint:`unit-devel <Required to install the Node.js module>` unit-jsc8 unit-jsc11  \
                   unit-perl unit-php unit-python27 unit-python36 unit-python38 unit-python39 unit-wasm
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -963,8 +1074,14 @@ RHEL and derivatives
          .. code-block:: console
 
             # yum install unit
+
+         .. code-block:: console
+
             # yum install :nxt_hint:`unit-devel <Required to install the Node.js module>` unit-jsc8 unit-jsc11  \
                   unit-perl unit-php unit-python27 unit-python36
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -1010,8 +1127,14 @@ RHEL and derivatives
          .. code-block:: console
 
             # yum install unit
+
+         .. code-block:: console
+
             # yum install :nxt_hint:`unit-devel <Required to install the Node.js module>` unit-jsc8 unit-perl  \
                   unit-php unit-python
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -1077,9 +1200,18 @@ Ubuntu
          .. code-block:: console
 
             # apt update
+
+         .. code-block:: console
+
             # apt install unit
+
+         .. code-block:: console
+
             # apt install :nxt_hint:`unit-dev <Required to install the Node.js module and build Go apps>` unit-go unit-jsc11 unit-jsc17 unit-jsc18 unit-jsc19 unit-jsc20  \
                           unit-perl unit-php unit-python3.11 unit-ruby unit-wasm
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -1133,9 +1265,18 @@ Ubuntu
          .. code-block:: console
 
             # apt update
+
+         .. code-block:: console
+
             # apt install unit
+
+         .. code-block:: console
+
             # apt install :nxt_hint:`unit-dev <Required to install the Node.js module and build Go apps>` unit-go unit-jsc11 unit-jsc17 unit-jsc18 unit-jsc19  \
                           unit-perl unit-php unit-python2.7 unit-python3.10 unit-ruby unit-wasm
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -1183,9 +1324,18 @@ Ubuntu
          .. code-block:: console
 
             # apt update
+
+         .. code-block:: console
+
             # apt install unit
+
+         .. code-block:: console
+
             # apt install :nxt_hint:`unit-dev <Required to install the Node.js module and build Go apps>` unit-go unit-jsc11 unit-jsc16 unit-jsc17 unit-jsc18  \
                           unit-perl unit-php unit-python2.7 unit-python3.10 unit-ruby unit-wasm
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -1239,9 +1389,18 @@ Ubuntu
          .. code-block:: console
 
             # apt update
+
+         .. code-block:: console
+
             # apt install unit
+
+         .. code-block:: console
+
             # apt install :nxt_hint:`unit-dev <Required to install the Node.js module>` unit-jsc11 unit-jsc16 unit-jsc17 unit-jsc18  \
                           unit-perl unit-php unit-python2.7 unit-python3.9 unit-python3.10 unit-ruby
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -1295,7 +1454,13 @@ Ubuntu
          .. code-block:: console
 
             # apt update
+
+         .. code-block:: console
+
             # apt install unit
+
+         .. code-block:: console
+
             # apt install :nxt_hint:`unit-dev <Required to install the Node.js module>` unit-jsc11 unit-jsc15 unit-jsc16 unit-jsc17  \
                           unit-perl unit-php unit-python2.7 unit-python3.9 unit-ruby
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
@@ -1351,9 +1516,18 @@ Ubuntu
          .. code-block:: console
 
             # apt update
+
+         .. code-block:: console
+
             # apt install unit
+
+         .. code-block:: console
+
             # apt install :nxt_hint:`unit-dev <Required to install the Node.js module>` unit-jsc11 unit-jsc13 unit-jsc14 unit-jsc15  \
                           unit-perl unit-php unit-python3.8 unit-ruby
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -1401,9 +1575,18 @@ Ubuntu
          .. code-block:: console
 
             # apt update
+
+         .. code-block:: console
+
             # apt install unit
+
+         .. code-block:: console
+
             # apt install :nxt_hint:`unit-dev <Required to install the Node.js module>` unit-jsc11 unit-perl  \
                   unit-php unit-python2.7 unit-python3.8 unit-ruby unit-wasm
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -1457,9 +1640,18 @@ Ubuntu
          .. code-block:: console
 
             # apt update
+
+         .. code-block:: console
+
             # apt install unit
+
+         .. code-block:: console
+
             # apt install :nxt_hint:`unit-dev <Required to install the Node.js module>` unit-jsc11 unit-perl  \
                   unit-php unit-python2.7 unit-python3.7 unit-python3.8 unit-ruby
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -1513,9 +1705,18 @@ Ubuntu
          .. code-block:: console
 
             # apt update
+
+         .. code-block:: console
+
             # apt install unit
+
+         .. code-block:: console
+
             # apt install :nxt_hint:`unit-dev <Required to install the Node.js module>` unit-jsc8 unit-jsc11 unit-perl  \
                   unit-php unit-python2.7 unit-python3.6 unit-python3.7 unit-ruby
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -1569,9 +1770,18 @@ Ubuntu
          .. code-block:: console
 
             # apt update
+
+         .. code-block:: console
+
             # apt install unit
+
+         .. code-block:: console
+
             # apt install :nxt_hint:`unit-dev <Required to install the Node.js module>` unit-jsc8 unit-perl unit-php  \
                   unit-python2.7 unit-python3.5 unit-ruby
+
+         .. code-block:: console
+
             # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -1619,7 +1829,13 @@ macOS
       .. code-block:: console
 
          $ brew install unit-java unit-perl unit-php unit-python unit-python3 unit-ruby
+
+      .. code-block:: console
+
          # pkill unitd  # Stop Unit
+
+      .. code-block:: console
+
          # unitd        # Start Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -1642,6 +1858,9 @@ macOS
    .. code-block:: console
 
       $ export OBJC_DISABLE_INITIALIZE_FORK_SAFETY=YES
+
+   .. code-block:: console
+
       $ sudo --preserve-env=OBJC_DISABLE_INITIALIZE_FORK_SAFETY :nxt_ph:`/path/to/unitd <Unit's executable pathname>` ...
 
 
@@ -1721,7 +1940,13 @@ make sure to update the module as well:
    .. code-block:: console
 
       $ nvm install 18
+
+   .. code-block:: console
+
       $ nvm install 16
+
+   .. code-block:: console
+
       $ nvm use 18
             Now using node :nxt_hint:`v18.12.1 <Note the version numbers>` (npm v8.19.2)
 
@@ -1739,11 +1964,22 @@ make sure to update the module as well:
    .. code-block:: console
 
       $ git clone https://github.com/nginx/unit
+
+   .. code-block:: console
+
       $ cd unit
+
+   .. code-block:: console
+
       $ pwd
             :nxt_hint:`/home/user/unit <Note the path to the source code>`
 
+   .. code-block:: console
+
       $ ./configure
+
+   .. code-block:: console
+
       $ ./configure nodejs
 
             configuring nodejs module
@@ -1762,6 +1998,8 @@ make sure to update the module as well:
       $ CPPFLAGS="-I/home/user/unit/include/" LDFLAGS="-L/home/user/unit/lib/"  \
             make node-install
 
+   .. code-block:: console
+
       $ npm list -g
 
             /home/vagrant/.nvm/versions/node/v18.12.1/lib
@@ -1873,7 +2111,13 @@ Community Repositories
       .. code-block:: console
 
          # apk update
+
+      .. code-block:: console
+
          # apk upgrade
+
+      .. code-block:: console
+
          # apk add unit
 
       To install service manager files
@@ -1882,6 +2126,9 @@ Community Repositories
       .. code-block:: console
 
          # apk add unit-openrc unit-perl unit-php7 unit-python3 unit-ruby
+
+      .. code-block:: console
+
          # service unit restart  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -1901,8 +2148,17 @@ Community Repositories
            - .. code-block:: console
 
                 # :nxt_hint:`service unit enable <Enable Unit to launch automatically at system startup>`
+
+             .. code-block:: console
+
                 # :nxt_hint:`service unit restart <Start or restart Unit; one-time action>`
+
+             .. code-block:: console
+
                 # :nxt_hint:`service unit stop <Stop a running Unit; one-time action>`
+
+             .. code-block:: console
+
                 # :nxt_hint:`service unit disable <Disable Unit's automatic startup>`
 
 
@@ -1916,8 +2172,17 @@ Community Repositories
       .. code-block:: console
 
          # apt-get update
+
+      .. code-block:: console
+
          # apt-get install unit
+
+      .. code-block:: console
+
          # apt-get install unit-perl unit-php unit-python3 unit-ruby
+
+      .. code-block:: console
+
          # service unit restart  # Necessary for Unit to pick up any changes in language module setup
 
       Versions of these packages
@@ -1942,8 +2207,17 @@ Community Repositories
            - .. code-block:: console
 
                 # :nxt_hint:`service unit enable <Enable Unit to launch automatically at system startup>`
+
+             .. code-block:: console
+
                 # :nxt_hint:`service unit restart <Start or restart Unit; one-time action>`
+
+             .. code-block:: console
+
                 # :nxt_hint:`service unit stop <Stop a running Unit; one-time action>`
+
+             .. code-block:: console
+
                 # :nxt_hint:`service unit disable <Disable Unit's automatic startup>`
 
 
@@ -1988,8 +2262,17 @@ Community Repositories
            - .. code-block:: console
 
                 # :nxt_hint:`systemctl enable unit <Enable Unit to launch automatically at system startup>`
+
+             .. code-block:: console
+
                 # :nxt_hint:`systemctl restart unit <Start or restart Unit; one-time action>`
+
+             .. code-block:: console
+
                 # :nxt_hint:`systemctl stop unit <Stop a running Unit; one-time action>`
+
+             .. code-block:: console
+
                 # :nxt_hint:`systemctl disable unit <Disable Unit's automatic startup>`
 
 
@@ -2003,13 +2286,22 @@ Community Repositories
         .. code-block:: console
 
            # pkg install -y unit
+
+        .. code-block:: console
+
            # pkg install -y :nxt_hint:`libunit <Required to install the Node.js module>`
+
+        .. code-block:: console
+
            # pkg install -y unit-java8  \
                             unit-perl5.36  \
                             unit-php81 unit-php82 unit-php83  \
                             unit-python39  \
                             unit-ruby3.2  \
                             unit-wasm
+
+        .. code-block:: console
+
            # service unitd restart  # Necessary for Unit to pick up any changes in language module setup
 
         To install Unit from
@@ -2035,7 +2327,13 @@ Community Repositories
         .. code-block:: console
 
            # cd /usr/ports/www/unit/
+
+        .. code-block:: console
+
            # make
+
+        .. code-block:: console
+
            # make install
 
         Repeat the steps for the other ports you need:
@@ -2081,8 +2379,17 @@ Community Repositories
              - .. code-block:: console
 
                   # :nxt_hint:`service unitd enable <Enable Unit to launch automatically at system startup>`
+
+               .. code-block:: console
+
                   # :nxt_hint:`service unitd restart <Start or restart Unit; one-time action>`
+
+               .. code-block:: console
+
                   # :nxt_hint:`service unitd stop <Stop a running Unit; one-time action>`
+
+               .. code-block:: console
+
                   # :nxt_hint:`service unitd disable <Disable Unit's automatic startup>`
 
 
@@ -2098,6 +2405,9 @@ Community Repositories
       .. code-block:: console
 
          # emerge --sync
+
+      .. code-block:: console
+
          # emerge www-servers/nginx-unit
 
       To install specific language modules and features,
@@ -2122,8 +2432,17 @@ Community Repositories
            - .. code-block:: console
 
                 # :nxt_hint:`rc-update add nginx-unit <Enable Unit to launch automatically at system startup>`
+
+             .. code-block:: console
+
                 # :nxt_hint:`rc-service nginx-unit restart <Start or restart Unit; one-time action>`
+
+             .. code-block:: console
+
                 # :nxt_hint:`rc-service nginx-unit stop <Stop a running Unit; one-time action>`
+
+             .. code-block:: console
+
                 # :nxt_hint:`rc-update del nginx-unit <Disable Unit's automatic startup>`
 
 
@@ -2138,11 +2457,20 @@ Community Repositories
       .. code-block:: console
 
          # pkg_add unit
+
+      .. code-block:: console
+
          # pkg_add :nxt_hint:`libunit <Required to install the Node.js module>`
+
+      .. code-block:: console
+
          # pkg_add unit-perl  \
                    unit-python2.7  \
                    unit-python3.8 unit-python3.9 unit-python3.10 unit-python3.11 unit-python3.12  \
                    unit-ruby31 unit-ruby32 unit-ruby33
+
+      .. code-block:: console
+
          # service unit restart  # Necessary for Unit to pick up any changes in language module setup
 
       To build Unit manually,
@@ -2158,6 +2486,9 @@ Community Repositories
       .. code-block:: console
 
          # cd /usr/pkgsrc/www/unit/
+
+      .. code-block:: console
+
          # make build install
 
       Repeat the steps for the other packages you need:
@@ -2218,6 +2549,9 @@ Community Repositories
              .. code-block:: console
 
                 # :nxt_hint:`service unit restart <Start or restart Unit; one-time action>`
+
+             .. code-block:: console
+
                 # :nxt_hint:`service unit stop <Stop a running Unit; one-time action>`
 
              To enable or disable Unit's automatic startup,
@@ -2288,8 +2622,17 @@ Community Repositories
              .. code-block:: console
 
                 # :nxt_hint:`systemctl enable unit <Enable Unit to launch automatically at system startup>`
+
+             .. code-block:: console
+
                 # :nxt_hint:`systemctl restart unit <Start or restart Unit; one-time action>`
+
+             .. code-block:: console
+
                 # :nxt_hint:`systemctl stop unit <Stop a running Unit; one-time action>`
+
+             .. code-block:: console
+
                 # :nxt_hint:`systemctl disable unit <Disable Unit's automatic startup>`
 
 
@@ -2303,14 +2646,41 @@ Community Repositories
         .. code-block:: console
 
            # pkg_add unit
+
+        .. code-block:: console
+
            # pkg_add unit-perl
+
+        .. code-block:: console
+
            # pkg_add unit-php74
+
+        .. code-block:: console
+
            # pkg_add unit-php80
+
+        .. code-block:: console
+
            # pkg_add unit-php81
+
+        .. code-block:: console
+
            # pkg_add unit-php82
+
+        .. code-block:: console
+
            # pkg_add unit-php83
+
+        .. code-block:: console
+
            # pkg_add unit-python
+
+        .. code-block:: console
+
            # pkg_add unit-ruby
+
+        .. code-block:: console
+
            # rcctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
         To install Unit from
@@ -2321,6 +2691,9 @@ Community Repositories
         .. code-block:: console
 
            $ cd /usr/
+
+        .. code-block:: console
+
            $ cvs -d anoncvs@anoncvs.spacehopper.org:/cvs checkout -P ports
 
         Next, browse to the port path to build and install Unit:
@@ -2328,7 +2701,13 @@ Community Repositories
         .. code-block:: console
 
            $ cd /usr/ports/www/unit/
+
+        .. code-block:: console
+
            $ make
+
+        .. code-block:: console
+
            # make install
 
         This also installs the language modules for Perl, PHP, Python, and Ruby;
@@ -2354,11 +2733,21 @@ Community Repositories
              - **_unit**
 
            * - Startup and shutdown
+
              - .. code-block:: console
 
                   # :nxt_hint:`rcctl enable unit <Enable Unit to launch automatically at system startup>`
+
+               .. code-block:: console
+
                   # :nxt_hint:`rcctl restart unit <Start or restart Unit; one-time action>`
+
+               .. code-block:: console
+
                   # :nxt_hint:`rcctl stop unit <Stop a running Unit; one-time action>`
+
+               .. code-block:: console
+
                   # :nxt_hint:`rcctl disable unit <Disable Unit's automatic startup>`
 
 
@@ -2387,6 +2776,9 @@ Community Repositories
                php54-unit-php php55-unit-php php56-unit-php  \
                php70-unit-php php71-unit-php php72-unit-php php73-unit-php php74-unit-php  \
                php80-unit-php php81-unit-php php82-unit-php
+
+      .. code-block:: console
+
          # systemctl restart unit  # Necessary for Unit to pick up any changes in language module setup
 
       Runtime details:
@@ -2406,8 +2798,17 @@ Community Repositories
            - .. code-block:: console
 
                 # :nxt_hint:`systemctl enable unit <Enable Unit to launch automatically at system startup>`
+
+             .. code-block:: console
+
                 # :nxt_hint:`systemctl restart unit <Start or restart Unit; one-time action>`
+
+             .. code-block:: console
+
                 # :nxt_hint:`systemctl stop unit <Stop a running Unit; one-time action>`
+
+             .. code-block:: console
+
                 # :nxt_hint:`systemctl disable unit <Disable Unit's automatic startup>`
 
 
@@ -2511,9 +2912,21 @@ come in several language-specific flavors:
    .. subs-code-block:: console
 
       $ git clone https://github.com/nginx/unit
+
+   .. code-block:: console
+
       $ cd unit
+
+   .. code-block:: console
+
       $ git checkout |version|  # Optional; use to choose a specific Unit version
+
+   .. code-block:: console
+
       $ cd pkg/docker/
+
+   .. code-block:: console
+
       $ make build-:nxt_ph:`python3.10 <Language name and version>` VERSIONS_:nxt_ph:`python <Language name>`=:nxt_ph:`3.10 <Language version>`
 
    For details, see the
@@ -2567,6 +2980,9 @@ You can obtain the images from these sources:
       .. code-block:: console
 
          $ docker pull unit::nxt_ph:`TAG <Specific image tag; see above for a complete list>`
+
+      .. code-block:: console
+
          $ docker run -d unit::nxt_ph:`TAG <Specific image tag; see above for a complete list>`
 
 
@@ -2579,6 +2995,9 @@ You can obtain the images from these sources:
       .. code-block:: console
 
          $ docker pull public.ecr.aws/nginx/unit::nxt_ph:`TAG <Specific image tag; see above for a complete list>`
+
+      .. code-block:: console
+
          $ docker run -d public.ecr.aws/nginx/unit::nxt_ph:`TAG <Specific image tag; see above for a complete list>`
 
 
@@ -2596,10 +3015,18 @@ You can obtain the images from these sources:
       .. subs-code-block:: console
 
          $ curl -O https://packages.nginx.org/unit/docker/1.29.1/nginx-unit-:nxt_ph:`TAG <Specific image tag; see above for a complete list>`.tar.gz
+
+      .. code-block:: console
+
          $ curl -O https://packages.nginx.org/unit/docker/1.29.1/nginx-unit-:nxt_ph:`TAG <Specific image tag; see above for a complete list>`.tar.gz.sha512
+
+      .. code-block:: console
+
          $ sha512sum -c nginx-unit-:nxt_ph:`TAG <Specific image tag; see above for a complete list>`.tar.gz.sha512
                nginx-unit-:nxt_ph:`TAG <Specific image tag; see above for a complete list>`.tar.gz: OK
 
+      .. code-block:: console
+
          $ docker load < nginx-unit-:nxt_ph:`TAG <Specific image tag; see above for a complete list>`.tar.gz
 
 Runtime details:
@@ -2722,8 +3149,17 @@ or as a tarball.
       .. subs-code-block:: console
 
          $ git clone https://github.com/nginx/unit            # Latest updates to the repository
+
+      .. subs-code-block:: console
+
          $ # -- or --
+
+      .. subs-code-block:: console
+
          $ git clone -b |version| https://github.com/nginx/unit  # Specific version tag; see https://github.com/nginx/unit/tags
+
+      .. subs-code-block:: console
+
          $ cd unit
 
 
@@ -2732,7 +3168,13 @@ or as a tarball.
       .. subs-code-block:: console
 
          $ curl -O https://sources.nginx.org/unit/unit-|version|.tar.gz
+
+      .. subs-code-block:: console
+
          $ tar xzf unit-|version|.tar.gz
+
+      .. subs-code-block:: console
+
          $ cd unit-|version|
 
 To build Unit and specific language modules from these sources,
diff --git a/source/news/2022/unit-1.29.0-released.rst b/source/news/2022/unit-1.29.0-released.rst
index 71861398..66c1d4e6 100644
--- a/source/news/2022/unit-1.29.0-released.rst
+++ b/source/news/2022/unit-1.29.0-released.rst
@@ -131,8 +131,17 @@ Installing and running Unit on a typical Linux system is now as simple as this:
 .. code-block:: console
 
    $ wget https://unit.nginx.org/_downloads/setup-unit && chmod +x setup-unit
+
+.. code-block:: console
+
    # ./setup-unit repo-config
+
+.. code-block:: console
+
    # apt install unit || yum install unit
+
+.. code-block:: console
+
    # ./setup-unit welcome
 
 The :program:`setup-unit` tool has other useful functions you can explore by
@@ -155,6 +164,9 @@ reads and updates the entire configuration:
 .. code-block:: console
 
    $ unitc /config
+
+.. code-block:: console
+
    $ cat conf.json | unitc /config
 
 You can find these tools and their corresponding documentation in the
diff --git a/source/troubleshooting.rst b/source/troubleshooting.rst
index be4fc344..7e5442dc 100644
--- a/source/troubleshooting.rst
+++ b/source/troubleshooting.rst
@@ -261,6 +261,9 @@ such as **unit-dbg**.
       .. code-block:: console
 
          # systemctl daemon-reload
+
+      .. code-block:: console
+
          # systemctl restart unit.service
 
       After a crash,
@@ -273,6 +276,8 @@ such as **unit-dbg**.
                TIME                            PID   UID   GID SIG COREFILE  EXE
                Mon 2020-07-27 11:05:40 GMT    1157     0     0  11 present   /usr/sbin/unitd
 
+      .. code-block:: console
+
          # ls -al /var/lib/systemd/coredump/  # default, see also /etc/systemd/coredump.conf and /etc/systemd/coredump.conf.d/*.conf
 
                ...
@@ -301,7 +306,13 @@ such as **unit-dbg**.
       .. code-block:: console
 
          # ulimit -c unlimited
+
+      .. code-block:: console
+
          # cd :nxt_ph:`/path/to/unit/ <Unit's installation directory>`
+
+      .. code-block:: console
+
          # sbin/unitd           # or sbin/unitd-debug
 
       After a crash,
@@ -336,6 +347,9 @@ such as **unit-dbg**.
       .. code-block:: console
 
          # sysctl kern.coredump=1
+
+      .. code-block:: console
+
          # sysctl kern.corefile=/path/to/core/files/%N.core
 
       Next, restart Unit
@@ -351,6 +365,9 @@ such as **unit-dbg**.
       .. code-block:: console
 
          # cd :nxt_ph:`/path/to/unit/ <Unit's installation directory>`
+
+      .. code-block:: console
+
          # sbin/unitd
 
       After a crash,
diff --git a/source/unitctl.rst b/source/unitctl.rst
index 399ef125..cb01d8df 100644
--- a/source/unitctl.rst
+++ b/source/unitctl.rst
@@ -363,8 +363,17 @@ use standard output with **-f -**, as shown in the examples below:
 .. code-block:: console
 
    $ unitctl export -f config.tar
+
+.. code-block:: console
+
    $ unitctl export -f -
+
+.. code-block:: console
+
    $ unitctl export -f - | tar xf - config.json
+
+.. code-block:: console
+
    $ unitctl export -f - > config.tar
 
 .. warning::