A bash script to be pasted into bashrc. Use the crush command to compress multiple jpgs and pngs inside of a directory. Requires pngcrush and libjpeg-progs

crush.sh

### Crush multiple image files in a folder
crush() {
	for f in *;
	do
		mv "$f" `echo $f | tr ' ' '_'`
	done

	for f in *.png
	do
		echo "$f"
		pngcrush -brute "$f"{,.} && du -b "$f"{,.}
		cp -f "$f." "$f"
		rm -f "$f."
	done

	for f in *.jpg
	do
		echo "$f"
		jpegtran "$f" > "$f." && du -b "$f"{,.}
		cp -f "$f." "$f"
		rm -f "$f."
	done
}