diff --git a/.codespellrc b/.codespellrc
new file mode 100644
index 0000000..8b191e6
--- /dev/null
+++ b/.codespellrc
@@ -0,0 +1,3 @@
+[codespell]
+skip = sublime*
+ignore-words-list = bu
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e87a77e..8f9dc79 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -27,10 +27,11 @@ v0.4.12 - 2022-05-23
 - Fix completions error with configs that do not have subcommands
 
 
+<!-- break v0.4.11 -->
 v0.4.11 - 2022-05-12
 ----------------------------------------
 
-- Genearte with bashly 0.8.0
+- Generate with bashly 0.8.0
 
 
 v0.4.10 - 2022-03-28
diff --git a/alf b/alf
index 9d1c30a..f5e8514 100755
--- a/alf
+++ b/alf
@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# This script was generated by bashly 1.1.0 (https://bashly.dannyb.co)
+# This script was generated by bashly 1.1.7 (https://bashly.dannyb.co)
 # Modifying it manually is not recommended
 
 # :wrapper.bash3_bouncer
@@ -431,7 +431,9 @@ inspect_args() {
   if ((${#args[@]})); then
     readarray -t sorted_keys < <(printf '%s\n' "${!args[@]}" | sort)
     echo args:
-    for k in "${sorted_keys[@]}"; do echo "- \${args[$k]} = ${args[$k]}"; done
+    for k in "${sorted_keys[@]}"; do
+      echo "- \${args[$k]} = ${args[$k]}"
+    done
   else
     echo args: none
   fi
@@ -449,9 +451,19 @@ inspect_args() {
     readarray -t sorted_keys < <(printf '%s\n' "${!deps[@]}" | sort)
     echo
     echo deps:
-    for k in "${sorted_keys[@]}"; do echo "- \${deps[$k]} = ${deps[$k]}"; done
+    for k in "${sorted_keys[@]}"; do
+      echo "- \${deps[$k]} = ${deps[$k]}"
+    done
   fi
 
+  if ((${#env_var_names[@]})); then
+    readarray -t sorted_names < <(printf '%s\n' "${env_var_names[@]}" | sort)
+    echo
+    echo "environment variables:"
+    for k in "${sorted_names[@]}"; do
+      echo "- \$$k = ${!k:-}"
+    done
+  fi
 }
 
 # :command.user_lib
@@ -926,6 +938,10 @@ parse_requirements() {
     esac
   done
 
+  # :command.environment_variables_filter
+
+  env_var_names+=("ALF_RC_FILE")
+
   # :command.command_filter
   action=${1:-}
 
@@ -1097,7 +1113,6 @@ alf_connect_parse_requirements() {
         # :command.parse_requirements_case
         # :command.parse_requirements_case_simple
         if [[ -z ${args['repo']+x} ]]; then
-
           args['repo']=$1
           shift
         else
@@ -1284,6 +1299,10 @@ alf_save_parse_requirements() {
     esac
   done
 
+  # :command.environment_variables_filter
+
+  env_var_names+=("ALF_ALIASES_FILE")
+
   # :command.command_filter
   action="save"
 
@@ -1389,11 +1408,9 @@ alf_which_parse_requirements() {
         # :command.parse_requirements_case
         # :command.parse_requirements_case_simple
         if [[ -z ${args['code']+x} ]]; then
-
           args['code']=$1
           shift
         elif [[ -z ${args['subcode']+x} ]]; then
-
           args['subcode']=$1
           shift
         else
@@ -1536,6 +1553,7 @@ run() {
   declare -A args=()
   declare -A deps=()
   declare -a other_args=()
+  declare -a env_var_names=()
   declare -a input=()
   normalize_input "$@"
   parse_requirements "${input[@]}"
diff --git a/doc/alf-connect.1 b/doc/alf-connect.1
index 0de6dfa..c11d25c 100644
--- a/doc/alf-connect.1
+++ b/doc/alf-connect.1
@@ -1,35 +1,16 @@
-.\" Automatically generated by Pandoc 3.1.6
+.\" Automatically generated by Pandoc 3.1.9
 .\"
-.\" Define V font for inline verbatim, using C font in formats
-.\" that render this, and otherwise B font.
-.ie "\f[CB]x\f[]"x" \{\
-. ftr V B
-. ftr VI BI
-. ftr VB B
-. ftr VBI BI
-.\}
-.el \{\
-. ftr V CR
-. ftr VI CI
-. ftr VB CB
-. ftr VBI CBI
-.\}
-.TH "alf-connect" "1" "September 2023" "" "Connect to a remote git repository."
-.hy
+.TH "alf-connect" "1" "February 2024" "" "Connect to a remote git repository."
 .SH NAME
-.PP
 \f[B]alf connect\f[R] - Connect to a remote git repository.
 .SH SYNOPSIS
-.PP
 \f[B]alf connect\f[R] REPO OPTIONS
 .SH DESCRIPTION
-.PP
 Connect to a remote git repository.
 .IP \[bu] 2
 Alias: \f[B]c\f[R]
 .SH ARGUMENTS
 .SS REPO
-.PP
 Remote GitHub repository to connect to.
 .PP
 Can be one of:
@@ -44,28 +25,22 @@ Any other full URL to a repository.
 \f[I]Required\f[R]
 .SH OPTIONS
 .SS --ssh
-.PP
 Connect to GitHub non-interactively using SSH (implies \f[B]--yes\f[R]).
 .SS --https
-.PP
 Connect to GitHub non-interactively using HTTPS (implies
 \f[B]--yes\f[R]).
 .SS --yes, -y
-.PP
 Connect to any remote repository non-interactively.
 .SH DEPENDENCIES
 .SS git
 .SH EXAMPLES
 .IP
-.nf
-\f[C]
+.EX
 alf connect you --ssh
 
 alf connect you/alf-config
 
 alf connect https://You\[at]bitbucket.org/YourUser/rush-repo.git --yes
-\f[R]
-.fi
+.EE
 .SH SEE ALSO
-.PP
 \f[B]alf\f[R](1)
diff --git a/doc/alf-connect.md b/doc/alf-connect.md
index 8248e09..d8f201f 100644
--- a/doc/alf-connect.md
+++ b/doc/alf-connect.md
@@ -1,6 +1,6 @@
 % alf-connect(1) | Connect to a remote git repository.
 % 
-% September 2023
+% February 2024
 
 NAME
 ==================================================
diff --git a/doc/alf-download.1 b/doc/alf-download.1
index 65a48dd..d984f15 100644
--- a/doc/alf-download.1
+++ b/doc/alf-download.1
@@ -1,34 +1,15 @@
-.\" Automatically generated by Pandoc 3.1.6
+.\" Automatically generated by Pandoc 3.1.9
 .\"
-.\" Define V font for inline verbatim, using C font in formats
-.\" that render this, and otherwise B font.
-.ie "\f[CB]x\f[]"x" \{\
-. ftr V B
-. ftr VI BI
-. ftr VB B
-. ftr VBI BI
-.\}
-.el \{\
-. ftr V CR
-. ftr VI CI
-. ftr VB CB
-. ftr VBI CBI
-.\}
-.TH "alf-download" "1" "September 2023" "" "Perform git pull on the connected repo."
-.hy
+.TH "alf-download" "1" "February 2024" "" "Perform git pull on the connected repo."
 .SH NAME
-.PP
 \f[B]alf download\f[R] - Perform git pull on the connected repo.
 .SH SYNOPSIS
-.PP
 \f[B]alf download\f[R]
 .SH DESCRIPTION
-.PP
 Perform git pull on the connected repo.
 .IP \[bu] 2
 Alias: \f[B]d, pull\f[R]
 .SH DEPENDENCIES
 .SS git
 .SH SEE ALSO
-.PP
 \f[B]alf\f[R](1)
diff --git a/doc/alf-download.md b/doc/alf-download.md
index 80d1277..b92f767 100644
--- a/doc/alf-download.md
+++ b/doc/alf-download.md
@@ -1,6 +1,6 @@
 % alf-download(1) | Perform git pull on the connected repo.
 % 
-% September 2023
+% February 2024
 
 NAME
 ==================================================
diff --git a/doc/alf-edit.1 b/doc/alf-edit.1
index 6be09b9..801e989 100644
--- a/doc/alf-edit.1
+++ b/doc/alf-edit.1
@@ -1,32 +1,13 @@
-.\" Automatically generated by Pandoc 3.1.6
+.\" Automatically generated by Pandoc 3.1.9
 .\"
-.\" Define V font for inline verbatim, using C font in formats
-.\" that render this, and otherwise B font.
-.ie "\f[CB]x\f[]"x" \{\
-. ftr V B
-. ftr VI BI
-. ftr VB B
-. ftr VBI BI
-.\}
-.el \{\
-. ftr V CR
-. ftr VI CI
-. ftr VB CB
-. ftr VBI CBI
-.\}
-.TH "alf-edit" "1" "September 2023" "" "Open your \f[V]alf.conf\f[R] for editing."
-.hy
+.TH "alf-edit" "1" "February 2024" "" "Open your \f[CR]alf.conf\f[R] for editing."
 .SH NAME
-.PP
-\f[B]alf edit\f[R] - Open your \f[V]alf.conf\f[R] for editing.
+\f[B]alf edit\f[R] - Open your \f[CR]alf.conf\f[R] for editing.
 .SH SYNOPSIS
-.PP
 \f[B]alf edit\f[R]
 .SH DESCRIPTION
-.PP
 Open your \f[B]alf.conf\f[R] for editing.
 .IP \[bu] 2
 Alias: \f[B]e\f[R]
 .SH SEE ALSO
-.PP
 \f[B]alf\f[R](1), \f[B]alf.conf\f[R](5)
diff --git a/doc/alf-edit.md b/doc/alf-edit.md
index 3b1cfe0..701ed4a 100644
--- a/doc/alf-edit.md
+++ b/doc/alf-edit.md
@@ -1,6 +1,6 @@
 % alf-edit(1) | Open your `alf.conf` for editing.
 % 
-% September 2023
+% February 2024
 
 NAME
 ==================================================
diff --git a/doc/alf-generate.1 b/doc/alf-generate.1
index 7c73d5b..c74081e 100644
--- a/doc/alf-generate.1
+++ b/doc/alf-generate.1
@@ -1,32 +1,13 @@
-.\" Automatically generated by Pandoc 3.1.6
+.\" Automatically generated by Pandoc 3.1.9
 .\"
-.\" Define V font for inline verbatim, using C font in formats
-.\" that render this, and otherwise B font.
-.ie "\f[CB]x\f[]"x" \{\
-. ftr V B
-. ftr VI BI
-. ftr VB B
-. ftr VBI BI
-.\}
-.el \{\
-. ftr V CR
-. ftr VI CI
-. ftr VB CB
-. ftr VBI CBI
-.\}
-.TH "alf-generate" "1" "September 2023" "" "Generate aliases to stdout."
-.hy
+.TH "alf-generate" "1" "February 2024" "" "Generate aliases to stdout."
 .SH NAME
-.PP
 \f[B]alf generate\f[R] - Generate aliases to stdout.
 .SH SYNOPSIS
-.PP
 \f[B]alf generate\f[R]
 .SH DESCRIPTION
-.PP
 Generate aliases to stdout.
 .IP \[bu] 2
 Alias: \f[B]g\f[R]
 .SH SEE ALSO
-.PP
 \f[B]alf\f[R](1)
diff --git a/doc/alf-generate.md b/doc/alf-generate.md
index db27201..6c98d17 100644
--- a/doc/alf-generate.md
+++ b/doc/alf-generate.md
@@ -1,6 +1,6 @@
 % alf-generate(1) | Generate aliases to stdout.
 % 
-% September 2023
+% February 2024
 
 NAME
 ==================================================
diff --git a/doc/alf-info.1 b/doc/alf-info.1
index eacfa24..6c22080 100644
--- a/doc/alf-info.1
+++ b/doc/alf-info.1
@@ -1,32 +1,13 @@
-.\" Automatically generated by Pandoc 3.1.6
+.\" Automatically generated by Pandoc 3.1.9
 .\"
-.\" Define V font for inline verbatim, using C font in formats
-.\" that render this, and otherwise B font.
-.ie "\f[CB]x\f[]"x" \{\
-. ftr V B
-. ftr VI BI
-. ftr VB B
-. ftr VBI BI
-.\}
-.el \{\
-. ftr V CR
-. ftr VI CI
-. ftr VB CB
-. ftr VBI CBI
-.\}
-.TH "alf-info" "1" "September 2023" "" "Show all alf related system facts."
-.hy
+.TH "alf-info" "1" "February 2024" "" "Show all alf related system facts."
 .SH NAME
-.PP
 \f[B]alf info\f[R] - Show all alf related system facts.
 .SH SYNOPSIS
-.PP
 \f[B]alf info\f[R]
 .SH DESCRIPTION
-.PP
 Show all alf related system facts.
 .SH DEPENDENCIES
 .SS git
 .SH SEE ALSO
-.PP
 \f[B]alf\f[R](1)
diff --git a/doc/alf-info.md b/doc/alf-info.md
index 852ea83..846daf4 100644
--- a/doc/alf-info.md
+++ b/doc/alf-info.md
@@ -1,6 +1,6 @@
 % alf-info(1) | Show all alf related system facts.
 % 
-% September 2023
+% February 2024
 
 NAME
 ==================================================
diff --git a/doc/alf-save.1 b/doc/alf-save.1
index 205a81e..602adc0 100644
--- a/doc/alf-save.1
+++ b/doc/alf-save.1
@@ -1,40 +1,20 @@
-.\" Automatically generated by Pandoc 3.1.6
+.\" Automatically generated by Pandoc 3.1.9
 .\"
-.\" Define V font for inline verbatim, using C font in formats
-.\" that render this, and otherwise B font.
-.ie "\f[CB]x\f[]"x" \{\
-. ftr V B
-. ftr VI BI
-. ftr VB B
-. ftr VBI BI
-.\}
-.el \{\
-. ftr V CR
-. ftr VI CI
-. ftr VB CB
-. ftr VBI CBI
-.\}
-.TH "alf-save" "1" "September 2023" "" "Generate aliases to \f[V]\[ti]/.bash_aliases\f[R]."
-.hy
+.TH "alf-save" "1" "February 2024" "" "Generate aliases to \f[CR]\[ti]/.bash_aliases\f[R]."
 .SH NAME
-.PP
-\f[B]alf save\f[R] - Generate aliases to \f[V]\[ti]/.bash_aliases\f[R].
+\f[B]alf save\f[R] - Generate aliases to \f[CR]\[ti]/.bash_aliases\f[R].
 .SH SYNOPSIS
-.PP
 \f[B]alf save\f[R]
 .SH DESCRIPTION
-.PP
 Generate aliases to \f[B]\[ti]/.bash_aliases\f[R].
 .IP \[bu] 2
 Alias: \f[B]s\f[R]
 .SH ENVIRONMENT VARIABLES
 .SS ALF_ALIASES_FILE
-.PP
 Path to bash_aliases file.
 .PP
 Aliases will be saved to this file.
 .PP
 Default: \f[B]\[ti]/.bash_aliases\f[R]
 .SH SEE ALSO
-.PP
 \f[B]alf\f[R](1)
diff --git a/doc/alf-save.md b/doc/alf-save.md
index 0d5318a..ac8c2d3 100644
--- a/doc/alf-save.md
+++ b/doc/alf-save.md
@@ -1,6 +1,6 @@
 % alf-save(1) | Generate aliases to `~/.bash_aliases`.
 % 
-% September 2023
+% February 2024
 
 NAME
 ==================================================
diff --git a/doc/alf-upgrade.1 b/doc/alf-upgrade.1
index 47c32dd..b826bd6 100644
--- a/doc/alf-upgrade.1
+++ b/doc/alf-upgrade.1
@@ -1,32 +1,13 @@
-.\" Automatically generated by Pandoc 3.1.6
+.\" Automatically generated by Pandoc 3.1.9
 .\"
-.\" Define V font for inline verbatim, using C font in formats
-.\" that render this, and otherwise B font.
-.ie "\f[CB]x\f[]"x" \{\
-. ftr V B
-. ftr VI BI
-. ftr VB B
-. ftr VBI BI
-.\}
-.el \{\
-. ftr V CR
-. ftr VI CI
-. ftr VB CB
-. ftr VBI CBI
-.\}
-.TH "alf-upgrade" "1" "September 2023" "" "Upgrade alf to the latest version."
-.hy
+.TH "alf-upgrade" "1" "February 2024" "" "Upgrade alf to the latest version."
 .SH NAME
-.PP
 \f[B]alf upgrade\f[R] - Upgrade alf to the latest version.
 .SH SYNOPSIS
-.PP
 \f[B]alf upgrade\f[R]
 .SH DESCRIPTION
-.PP
 Upgrade alf to the latest version.
 .SH DEPENDENCIES
 .SS curl
 .SH SEE ALSO
-.PP
 \f[B]alf\f[R](1)
diff --git a/doc/alf-upgrade.md b/doc/alf-upgrade.md
index 4cbb3e7..da870f3 100644
--- a/doc/alf-upgrade.md
+++ b/doc/alf-upgrade.md
@@ -1,6 +1,6 @@
 % alf-upgrade(1) | Upgrade alf to the latest version.
 % 
-% September 2023
+% February 2024
 
 NAME
 ==================================================
diff --git a/doc/alf-upload.1 b/doc/alf-upload.1
index 3279738..68776ca 100644
--- a/doc/alf-upload.1
+++ b/doc/alf-upload.1
@@ -1,35 +1,16 @@
-.\" Automatically generated by Pandoc 3.1.6
+.\" Automatically generated by Pandoc 3.1.9
 .\"
-.\" Define V font for inline verbatim, using C font in formats
-.\" that render this, and otherwise B font.
-.ie "\f[CB]x\f[]"x" \{\
-. ftr V B
-. ftr VI BI
-. ftr VB B
-. ftr VBI BI
-.\}
-.el \{\
-. ftr V CR
-. ftr VI CI
-. ftr VB CB
-. ftr VBI CBI
-.\}
-.TH "alf-upload" "1" "September 2023" "" "Perform git commit and push on the connected repo."
-.hy
+.TH "alf-upload" "1" "February 2024" "" "Perform git commit and push on the connected repo."
 .SH NAME
-.PP
 \f[B]alf upload\f[R] - Perform git commit and push on the connected
 repo.
 .SH SYNOPSIS
-.PP
 \f[B]alf upload\f[R]
 .SH DESCRIPTION
-.PP
 Perform git commit and push on the connected repo.
 .IP \[bu] 2
 Alias: \f[B]u, push\f[R]
 .SH DEPENDENCIES
 .SS git
 .SH SEE ALSO
-.PP
 \f[B]alf\f[R](1)
diff --git a/doc/alf-upload.md b/doc/alf-upload.md
index ff1f393..a5a27da 100644
--- a/doc/alf-upload.md
+++ b/doc/alf-upload.md
@@ -1,6 +1,6 @@
 % alf-upload(1) | Perform git commit and push on the connected repo.
 % 
-% September 2023
+% February 2024
 
 NAME
 ==================================================
diff --git a/doc/alf-which.1 b/doc/alf-which.1
index cbeea3a..f6d4d39 100644
--- a/doc/alf-which.1
+++ b/doc/alf-which.1
@@ -1,41 +1,20 @@
-.\" Automatically generated by Pandoc 3.1.6
+.\" Automatically generated by Pandoc 3.1.9
 .\"
-.\" Define V font for inline verbatim, using C font in formats
-.\" that render this, and otherwise B font.
-.ie "\f[CB]x\f[]"x" \{\
-. ftr V B
-. ftr VI BI
-. ftr VB B
-. ftr VBI BI
-.\}
-.el \{\
-. ftr V CR
-. ftr VI CI
-. ftr VB CB
-. ftr VBI CBI
-.\}
-.TH "alf-which" "1" "September 2023" "" "Show the alias command."
-.hy
+.TH "alf-which" "1" "February 2024" "" "Show the alias command."
 .SH NAME
-.PP
 \f[B]alf which\f[R] - Show the alias command.
 .SH SYNOPSIS
-.PP
 \f[B]alf which\f[R] CODE SUBCODE
 .SH DESCRIPTION
-.PP
 Show the alias command.
 .IP \[bu] 2
 Alias: \f[B]w\f[R]
 .SH ARGUMENTS
 .SS CODE
-.PP
 Show the command for this alias code.
 .IP \[bu] 2
 \f[I]Required\f[R]
 .SS SUBCODE
-.PP
 Show the command for this alias sub-code.
 .SH SEE ALSO
-.PP
 \f[B]alf\f[R](1)
diff --git a/doc/alf-which.md b/doc/alf-which.md
index b54de1a..3b5e8f2 100644
--- a/doc/alf-which.md
+++ b/doc/alf-which.md
@@ -1,6 +1,6 @@
 % alf-which(1) | Show the alias command.
 % 
-% September 2023
+% February 2024
 
 NAME
 ==================================================
diff --git a/doc/alf.1 b/doc/alf.1
index eaebb37..dbec418 100644
--- a/doc/alf.1
+++ b/doc/alf.1
@@ -1,77 +1,46 @@
-.\" Automatically generated by Pandoc 3.1.6
+.\" Automatically generated by Pandoc 3.1.9
 .\"
-.\" Define V font for inline verbatim, using C font in formats
-.\" that render this, and otherwise B font.
-.ie "\f[CB]x\f[]"x" \{\
-. ftr V B
-. ftr VI BI
-. ftr VB B
-. ftr VBI BI
-.\}
-.el \{\
-. ftr V CR
-. ftr VI CI
-. ftr VB CB
-. ftr VBI CBI
-.\}
-.TH "alf" "1" "September 2023" "Version 0.6.0" "Your Little Bash Alias Friend"
-.hy
+.TH "alf" "1" "February 2024" "Version 0.6.0" "Your Little Bash Alias Friend"
 .SH NAME
-.PP
 \f[B]alf\f[R] - Your Little Bash Alias Friend
 .SH SYNOPSIS
-.PP
 \f[B]alf\f[R] COMMAND
 .SH DESCRIPTION
-.PP
 Your Little Bash Alias Friend
 .SH COMMANDS
 .SS alf connect
-.PP
 Connect to a remote git repository.
 .SS alf download
-.PP
 Perform git pull on the connected repo.
 .SS alf upload
-.PP
 Perform git commit and push on the connected repo.
 .SS alf generate
-.PP
 Generate aliases to stdout.
 .SS alf save
-.PP
 Generate aliases to \f[B]\[ti]/.bash_aliases\f[R].
 .SS alf edit
-.PP
 Open your \f[B]alf.conf\f[R] for editing.
 .SS alf which
-.PP
 Show the alias command.
 .SS alf upgrade
-.PP
 Upgrade alf to the latest version.
 .SS alf info
-.PP
 Show all alf related system facts.
 .SH ENVIRONMENT VARIABLES
 .SS ALF_RC_FILE
-.PP
 Path to alfrc file.
 .PP
 This file holds the path to the alf-conf repository.
 .PP
 Default: \f[B]\[ti]/.alfrc\f[R]
 .SH SEE ALSO
-.PP
 \f[B]alf-connect\f[R](1), \f[B]alf-download\f[R](1),
 \f[B]alf-upload\f[R](1), \f[B]alf-generate\f[R](1),
 \f[B]alf-save\f[R](1), \f[B]alf-edit\f[R](1), \f[B]alf-which\f[R](1),
 \f[B]alf-upgrade\f[R](1), \f[B]alf-info\f[R](1), \f[B]alf.conf\f[R](5)
 .SH SOURCE CODE
-.PP
 https://github.com/dannyben/alf
 .SH ISSUE TRACKER
-.PP
 https://github.com/dannyben/alf/issues
 .SH AUTHORS
 Danny Ben Shitrit <https://github.com/dannyben>.
diff --git a/doc/alf.conf.5 b/doc/alf.conf.5
index 9796e11..f2f49ac 100644
--- a/doc/alf.conf.5
+++ b/doc/alf.conf.5
@@ -1,100 +1,67 @@
-.\" Automatically generated by Pandoc 3.1.6
+.\" Automatically generated by Pandoc 3.1.9
 .\"
-.\" Define V font for inline verbatim, using C font in formats
-.\" that render this, and otherwise B font.
-.ie "\f[CB]x\f[]"x" \{\
-. ftr V B
-. ftr VI BI
-. ftr VB B
-. ftr VBI BI
-.\}
-.el \{\
-. ftr V CR
-. ftr VI CI
-. ftr VB CB
-. ftr VBI CBI
-.\}
 .TH "alf.conf" "5" "September 2023" "alf.conf(5)" "File Formats Manual"
-.hy
 .SH NAME
-.PP
 \f[B]alf.conf\f[R] - configuration file for alf
 .SH DESCRIPTION
-.PP
 The \f[B]alf.conf\f[R] file consists of aliases and the command
 associated with them.
 .SS Base Aliases
-.PP
 Any line that does not start with a whitespace is considered a base
 alias.
 .IP
-.nf
-\f[C]
+.EX
 dir: ls -l
-\f[R]
-.fi
+.EE
 .SS Sub Aliases
-.PP
 Any line that starts with one or more whitespaces will be nested as a
 sub command of the previous base alias.
 Note that the command of the base alias will be used as a prefix to all
 nested commands.
 .IP
-.nf
-\f[C]
+.EX
 g: git
   s: status
   c: add . --all && git commit -am
   l: log --all --graph --date=relative
   p: push
-\f[R]
-.fi
+.EE
 .PP
 In this example, running \f[B]g s\f[R] will execute \f[B]git
 status\f[R].
 .SS Reusing Aliases
-.PP
 You can call an alias from another alias.
 .IP
-.nf
-\f[C]
+.EX
 g: git
   p: push
 
 gg: g p
-\f[R]
-.fi
+.EE
 .PP
 In this example, running \f[B]gg\f[R] will execute \f[B]git push\f[R].
 .SS Escape Code
-.PP
 Sub commands that start with an exclamation mark will not be prefixed by
 their base command.
 .IP
-.nf
-\f[C]
+.EX
 dc: docker-compose
   deploy: !docker stack deploy -c docker-compose.yml
   upd: up -d
-\f[R]
-.fi
+.EE
 .SS Virtual Command
-.PP
 When you do not need to prepend your sub aliases with the primary
 command, specify an exclamation mark in the primary command.
 .IP
-.nf
-\f[C]
+.EX
 dns: !
   check: host -t ns
   flush: sudo systemd-resolve --flush-caches
-\f[R]
-.fi
+.EE
 .PP
 This example provides two completely different aliases: \f[B]dns
 check\f[R] and \f[B]dns flush\f[R].
 .SS Arguments
-.PP
 By default, all arguments that are provided in the input are passed on
 to the alias, using \f[B]\[dq]$\[at]\[dq]\f[R].
 If your command contains the \f[B]$\f[R] symbol, then the array of
@@ -103,33 +70,25 @@ arguments will NOT be appended to the command.
 You can even provide a default value to the argument using the standard
 bash syntax, and use any bash construct, like inline functions.
 .IP
-.nf
-\f[C]
+.EX
 count: find ${1:-.} -type f | wc -l
 binlink: sudo ln -fs \[dq]$(realpath $1)\[dq] \[dq]/usr/local/bin/$1\[dq]
-\f[R]
-.fi
+.EE
 .SS Comments
-.PP
 Any line starting with \f[B]#\f[R] will be considered a comment.
 Do not use inline comments.
 .IP
-.nf
-\f[C]
+.EX
 # good
 dir: ls -l
 
 dir: ls -l   # bad
-\f[R]
-.fi
+.EE
 .SH SEE ALSO
-.PP
 \f[B]alf\f[R](1)
 .SH SOURCE CODE
-.PP
 https://github.com/dannyben/alf
 .SH ISSUE TRACKER
-.PP
 https://github.com/dannyben/alf/issues
 .SH AUTHORS
 Danny Ben Shitrit <https://github.com/dannyben>.
diff --git a/doc/alf.md b/doc/alf.md
index cf56ed8..e74d7f2 100644
--- a/doc/alf.md
+++ b/doc/alf.md
@@ -1,6 +1,6 @@
 % alf(1) Version 0.6.0 | Your Little Bash Alias Friend
 % Danny Ben Shitrit \<https://github.com/dannyben\>
-% September 2023
+% February 2024
 
 NAME
 ==================================================
diff --git a/test/approvals.bash b/test/approvals.bash
index 123a03d..e32ccda 100644
--- a/test/approvals.bash
+++ b/test/approvals.bash
@@ -1,4 +1,4 @@
-# approvals.bash v0.4.0
+# approvals.bash v0.4.2
 #
 # Interactive approval testing for Bash.
 # https://github.com/DannyBen/approvals.bash
@@ -9,8 +9,8 @@ approve() {
   cmd=$1
   last_exit_code=0
   actual=$(eval "$cmd" 2>&1) || last_exit_code=$?
-  if [[ "$allow_diff_regex" ]]; then
-    actual=$(echo "$actual" | sed "s/$allow_diff_regex/*/g")
+  if [[ -v allow_diff_regex && "$allow_diff_regex" ]]; then
+    actual=$(echo "$actual" | sed -E "s/$allow_diff_regex/*/g")
     unset allow_diff_regex
   fi
   approval=$(printf "%b" "$cmd" | tr -s -c "[:alnum:]" _)