dmenu_path supporting bash aliases

dmenu_path

#!/bin/bash
cachedir=${XDG_CACHE_HOME:-"$HOME/.cache"}
if [ -d "$cachedir" ]; then
	cache=$cachedir/dmenu_run
else
	cache=$HOME/.dmenu_cache # if no xdg dir, fall back to dotfile in ~
fi
IFS=:
if stest -dqr -n "$cache" $PATH; then
	compgen -ac | sort -u | tee "$cache"
else
	cat "$cache"
fi