diff --git a/git-addsub b/git-addsub
index 0267daa..348eb0f 100755
--- a/git-addsub
+++ b/git-addsub
@@ -12,7 +12,7 @@ for dir in "$@"; do
     SUBDIR=$(abspath "$dir")
     SUBDIR=$(echo $SUBDIR | sed s/$PROJ_RE//)
 
-    repo=$(echo $(grep "url = " "$dir/.git/config") | \
+    repo=$(grep "url = " "$dir/.git/config" | \
         sed 's/.*url = //' | \
         sed 's/git@github.com:\([^\/]*\)\//git:\/\/github.com\/\1\//' )
 
diff --git a/git-clone.sh b/git-clone.sh
index fcce503..49527fa 100755
--- a/git-clone.sh
+++ b/git-clone.sh
@@ -3,28 +3,21 @@
 # this script clones a repository, including all its remote branches
 # Author: julianromera
 
-GIT=$(command -v git)
-
-if [ "$1" = "" -o "$2" = "" ];then
+if [[ -z "$1" || -z "$2" ]];then
   echo "use: $0 <git_repository_to_clone> <directory>"
   exit 1
 fi
 
-if [ "$GIT" = "" ];then
-  echo "No git command found. install it"
-fi
 
 function clone {
 
-  $GIT clone -q "$1" "$2"
-  res=$?
-
+  git clone -q "$1" "$2"
   cd "$2"
 
-  $GIT pull --all
+  git pull --all
 
-  for remote in $($GIT branch -r | grep -v \>); do
-     $GIT branch --track "${remote#origin/}" "$remote";
+  for remote in $(git branch -r | grep -v \>); do
+     git branch --track "${remote#origin/}" "$remote";
   done
 }
 
diff --git a/git-each b/git-each
index 3e3f982..e7c3f3d 100755
--- a/git-each
+++ b/git-each
@@ -1,13 +1,12 @@
 #!/usr/bin/env bash
 set -e
 
-DIRS="."
+dirs="."
 if [[ "$1" == --dir ]]; then
-    shift 1
-    DIRS="$1"
-    shift 1
+    dirs="$2"
+    shift 2
 fi
 
-exec find $DIRS \( -path '*/.git/config' -o \
+exec find $dirs \( -path '*/.git/config' -o \
                    -regex '.*/.git/.*/config' \) -type f -print0 \
-         | parallel -0 --bar -j0 --delay 1 -k "git --git-dir={//} $@"
+         | parallel -0 --bar -j0 --delay 1 -k "git --git-dir={//} $*"
diff --git a/git-fat-objects b/git-fat-objects
index 5e128af..6f7eb3a 100755
--- a/git-fat-objects
+++ b/git-fat-objects
@@ -6,7 +6,7 @@ git rev-list --all --objects | \
     grep blob | \
     sort -n -k 3 | \
     tail -n40 | \
-    while read -r hash type size; do
+    while read -r hash _type size; do
          echo -n "-e s/$hash/$size/p ";
     done) | \
     sort -n -k1
diff --git a/git-find-children b/git-find-children
deleted file mode 100755
index ba3c185..0000000
--- a/git-find-children
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/usr/bin/env bash
-
-if [[ $# == 0 ]]; then
-    echo usage: git find-children REFS...
-fi
-
-for ref in "$@"; do
-    for sha1 in $(git rev-list "$@")
-    do
-        :
-    done
-done
diff --git a/git-fire-subtree/git-fire b/git-fire-subtree/git-fire
index 98689cb..982db4a 100755
--- a/git-fire-subtree/git-fire
+++ b/git-fire-subtree/git-fire
@@ -49,7 +49,7 @@ fire() {
 	done
 
 	for sha in $(git rev-list -g stash); do
-		git push origin "$sha":refs/heads/"$(current_branch $initial_branch)"-stash-"$sha"
+		git push origin "$sha":refs/heads/"$(current_branch "$initial_branch")"-stash-"$sha"
 	done
 
 	printf "\n\nLeave building!\n"
diff --git a/git-pulltree b/git-pulltree
index 8850617..d352d27 100755
--- a/git-pulltree
+++ b/git-pulltree
@@ -1,2 +1,2 @@
 #!/usr/bin/env bash
-git subtree pull --prefix $1 ext/$(basename $1) master --squash
+git subtree pull --prefix "$1" "ext/$(basename "$1")" master --squash
diff --git a/git-pushtree b/git-pushtree
index 214f328..99de9aa 100755
--- a/git-pushtree
+++ b/git-pushtree
@@ -1,2 +1,2 @@
 #!/usr/bin/env bash
-git subtree push --prefix $1 fork/$(basename $1) master
+git subtree push --prefix "$1" "fork/$(basename "$1")" master
diff --git a/git-remote-in-sync.sh b/git-remote-in-sync.sh
index 317d069..900ea02 100755
--- a/git-remote-in-sync.sh
+++ b/git-remote-in-sync.sh
@@ -12,13 +12,13 @@
 
 # written by Dieter Plaetinck
 
-list="$@"
+list="$*"
 [ -z "$list" ] && list=$(git remote)
 ret=0
 
 if [ -z "$(git branch)" ]
 then
-	if [ $(cd "$(git root)" && ls -Al | egrep -v "^(.git|total)" | wc -l) -gt 0 ]
+	if [ "$(cd "$(git root)" && ls -Al | grep -Ev "^(.git|total)" | wc -l)" -gt 0 ]
 	then
 		echo "WARN: This repo doesn't contain any branch, but contains a bunch of files!" >&2
 		ls -Alh "$(git root)"
@@ -39,10 +39,10 @@ then
 	echo "WARN: At least one branch, but no remotes found!  The content here might be unique!" >&2
 	ret=1
 else
-	if [ -n "$@" ]
+	if [ -n "$*" ]
 	then
-		echo "INFO: working with remote(s): $@"
-		echo "INFO: fyi, all remotes: "$(git remote)
+		echo "INFO: working with remote(s): $*"
+		echo "INFO: fyi, all remotes: $(git remote)"
 	else
 		echo "INFO: working with all remotes: $list"
 	fi
@@ -86,13 +86,13 @@ do
 	IFS=$IFS_BACKUP
 
 	# Check tags
-	out=$(git push --tags -n $remote 2>&1)
+	out=$(git push --tags -n "$remote" 2>&1)
 	if [ "$out" != 'Everything up-to-date' ];
 	then
 		echo -e "  WARN: Some tags are not in $remote!\n$out" >&2
 		ret=1
 	else
-		echo "  INFO: All tags ("$(git tag)") exist at $remote as well"
+		echo "  INFO: All tags ($(git tag)) exist at $remote as well"
 	fi
 done
 
@@ -122,7 +122,7 @@ then
 fi
 
 # Check stash
-if [ $(git stash list | wc -l) -gt 0 ];
+if [ "$(git stash list | wc -l)" -gt 0 ];
 then
 	echo "WARN: Dirty stash:" >&2
 	GIT_PAGER= git stash list >&2
diff --git a/git-standup b/git-standup
index bc6bd89..cf65a49 100755
--- a/git-standup
+++ b/git-standup
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
 if [[ $# -gt 2 ]] ; then
-  >&2 echo "Usage: $0 [fullname] [weekstart-weekend]\nExample: $0 \"John Doe\" MON-FRI"
+  >&2 printf '%s\n%s' "Usage: $0 [fullname] [weekstart-weekend]" "Example: $0 \"John Doe\" MON-FRI"
   exit 1
 fi