Jipok

#!/bin/bash
# btrfs-undelete
# Copyright (C) 2013 Jörg Walter <info@syntax-k.de>
# This program is free software; you can redistribute it and/or modify it under
# the term of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or any later version.

if [ ! -b "$1" -o -z "$2" -o -z "$3" ]; then
	echo "Usage: $0 <dev> <file/dir> <dest>" 1>&2
	echo