remove three bashism, over-use of [[ ]], $() and source

bash/completion

@@ -1,3 +1,3 @@
 for file in /etc/bash_completion /opt/local/etc/bash_completion ; do
-	[ -f ${file} ] && source $file && break
+	[ -f ${file} ] && . $file && break
 done

bash/git

@@ -1,3 +1,3 @@
 if [ -x /usr/local/git/contrib/completion/git-completion.bash ]; then
-	source /usr/local/git/contrib/completion/git-completion.bash
+	. /usr/local/git/contrib/completion/git-completion.bash
 fi

bashrc

@@ -18,14 +18,14 @@ shopt -s histappend
 # update the values of LINES and COLUMNS.
 shopt -s checkwinsize
 
-if [[ -d "${HOME}/.commonsh" ]] ; then
+if [ -d "${HOME}/.commonsh" ] ; then
     for file in "${HOME}"/.commonsh/* ; do
-        source $file
+        . $file
     done
 fi
 
-if [[ -d "${HOME}/.bash" ]] ; then
+if [ -d "${HOME}/.bash" ] ; then
     for file in "${HOME}"/.bash/* ; do
-        source $file
+        . $file
     done
 fi

zsh/icc

@@ -1,7 +1,7 @@
 local iccvars_path;
-if [[ -d "/opt/intel/Compiler" ]] ; then
+if [ -d "/opt/intel/Compiler" ] ; then
 	iccvars_path=$(echo /opt/intel/Compiler/11.*/*/bin/iccvars.sh(On[1]))
-	if [[ -r $iccvars_path ]] ; then
+	if [ -r $iccvars_path ] ; then
 		case `uname -m` in
 			x86_64)
 				source $iccvars_path intel64
@@ -14,9 +14,9 @@ if [[ -d "/opt/intel/Compiler" ]] ; then
 			;;
 		esac
 	fi
-elif [[ -d "/opt/intel/cc" ]] || [[ -d "/opt/intel/cce" ]] ; then
+elif [ -d "/opt/intel/cc" ] || [ -d "/opt/intel/cce" ] ; then
 	iccvars_path=$(echo /opt/intel/cc*/(10|9).*/bin/iccvars.sh(On[1]))
-	if [[ -r $iccvars_path ]] ; then
+	if [ -r $iccvars_path ] ; then
 		source $iccvars_path
 	fi
 fi

zsh/options

@@ -41,4 +41,3 @@ setopt HIST_IGNORE_ALL_DUPS
 
 unsetopt HIST_BEEP
 unsetopt EXTENDED_HISTORY
-

zsh/prompt

@@ -1,5 +1,5 @@
 # prompt
-if [[ -z ${SSH_TTY} ]] ; then
+if [ -z ${SSH_TTY} ] ; then
 	PROMPT=$'%{\e[01;32m%}%n@%m %{\e[01;34m%}%~ %(?..%{\e[01;31m%})%(!.#.$) %{\e[00;00m%}'
 	RPROMPT=$'%1(j.%{\e[00;36m%}[%j].)%{\e[01;33m%}[%t]%{\e[00;00m%}'
 else

zsh/title

@@ -3,7 +3,7 @@ precmd()
 {
 	local termtitle
 
-	termtitle=$(print -P "%n@%m")
+	termtitle=`print -P "%n@%m"`
 	title zsh "$termtitle"
 }
 
@@ -16,7 +16,7 @@ preexec()
 
 	# Prepend this string to the title.
 	# termtitle=$(print -P "%(!.-=*[ROOT]*=- | .)%n@%m:")
-	termtitle=$(print -P "%n@%m:")
+	termtitle=`print -P "%n@%m:"`
 
 	case $cmd[1] in
 		fg)

zshrc

@@ -8,7 +8,7 @@ autoload -U compinit; compinit -d "${HOME}/.zsh/.zcompdump"
 autoload -U age
 autoload -U zmv
 
-if [[ ${ZSH_VERSION//.} -gt 420 ]] ; then
+if [ ${ZSH_VERSION//.} -gt 420 ] ; then
 	autoload -U url-quote-magic
 	zle -N self-insert url-quote-magic
 fi
@@ -22,11 +22,11 @@ export LOGCHECK=30
 export WATCHFMT=$'\e[01;36m'" -- %n@%m has %(a.Logged In.Logged out) --"$'\e[00;00m'
 
 # directory hashes
-if [[ -d "${HOME}/sandbox" ]] ; then
+if [ -d "${HOME}/sandbox" ] ; then
 	hash -d sandbox="${HOME}/sandbox"
 fi
 
-if [[ -d "${HOME}/work" ]] ; then
+if [ -d "${HOME}/work" ] ; then
 	hash -d work="${HOME}/work"
 
 	for dir in "${HOME}"/work/*(N-/) ; do
@@ -35,15 +35,15 @@ if [[ -d "${HOME}/work" ]] ; then
 fi
 
 # common shell utils
-if [[ -d "${HOME}/.commonsh" ]] ; then
+if [ -d "${HOME}/.commonsh" ] ; then
 	for file in "${HOME}"/.commonsh/*(N.x:t) ; do
-		source "${HOME}/.commonsh/${file}"
+		. "${HOME}/.commonsh/${file}"
 	done
 fi
 
 # extras
-if [[ -d "${HOME}/.zsh" ]] ; then
+if [ -d "${HOME}/.zsh" ] ; then
 	for file in "${HOME}"/.zsh/*(N.x:t) ; do
-		source "${HOME}/.zsh/${file}"
+		. "${HOME}/.zsh/${file}"
 	done
 fi