iftodo() {
	x="$1"
	grep -w "$x" ~/.setup >/dev/null || {
		shift
		if "$@"; then
			echo "$x" >>~/.setup
		fi
	}
}
setup() {
	iftodo "$1" /usr/bin/setup_$1
}
susetup() {
	iftodo "$1" sudo /usr/sbin/setup_$1
}