casper-snapshot --version (return code: 0)
casper-snapshot, version 0.0.1 Copyright (C) 2006 Marco Amadori <firstname.lastname@example.org> This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL file. Homepage: <http://live.debian.net/>
casper-snapshot --help (return code: 0)
casper-snapshot - utility to do Debian Live snapshots Usage: casper-snapshot [-c|--cow DIRECTORY] [-d|--device DEVICE] [-o|--output FILE] [-t|--type TYPE] Usage: casper-snapshot [-r|--resync-string STRING] Usage: casper-snapshot [-h|--help] Usage: casper-snapshot [-u|--usage] Usage: casper-snapshot [-v|--version] Options: -c, --cow: specifies the copy on write directory (default: /cow). -d, --device: specifies the output snapshot device (default: none). -o, --output: specifies the output image file (default: dependent). -r, --resync-string: internally used to resync previous made snapshots. -t, --type: specifies the snapshot type between "squashfs", "ext2" or "cpio".gz archive (default: cpio) Look at casper-snapshot(1) man page for more information.