Simple zipdiff (I have this function in my .zprofile)

zipdiff.sh

function zipdiff {
	if [[ $# != 2 ]]; then
	    echo "$0: simple tool to diff zip files"
		echo "usage: $0 <one-zip-file> <other-zip-file>"
		return 1
	fi

	one=`mktemp -t 'zipdiff_1'`
	two=`mktemp -t 'zipdiff_2'`

	unzip -c -a "$1" > "$one"
	unzip -c -a "$2" > "$two"

	diff "$one" "$two"

	# cleanup
	rm -rf "$one" "$two"
}