deluser --version (return code: 0)
deluser version 3.113+nmu3ubuntu4 Removes users and groups from the system. Copyright (C) 2000 Roland Bauerschmidt <firstname.lastname@example.org> deluser is based on adduser by Guy Maor <email@example.com>, Ian Murdock <firstname.lastname@example.org> and Ted Hajek <email@example.com> 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, /usr/share/common-licenses/GPL, for more details.
deluser --help (return code: 0)
deluser USER remove a normal user from the system example: deluser mike --remove-home remove the users home directory and mail spool --remove-all-files remove all files owned by user --backup backup files before removing. --backup-to <DIR> target directory for the backups. Default is the current directory. --system only remove if system user delgroup GROUP deluser --group GROUP remove a group from the system example: deluser --group students --system only remove if system group --only-if-empty only remove if no members left deluser USER GROUP remove the user from a group example: deluser mike students general options: --quiet | -q don't give process information to stdout --help | -h usage message --version | -v version number and copyright --conf | -c FILE use FILE as configuration file