Section: Maintenance Commands (8)
Updated: Version 3.118ubuntu1
deluser, delgroup - remove a user or group from the system
[options] [--force] [--remove-home] [--remove-all-files] [--backup] [--backup-to DIR] user
deluser --group [options] group
delgroup [options] [--only-if-empty] group
deluser [options] user group
[--quiet] [--system] [--help] [--version] [--conf FILE]
deluser and delgroup
remove users and groups from the system according to command line options
and configuration information in
They are friendlier front ends to the
userdel and groupdel
programs, removing the home directory as option or even all files on the system
owned by the user to be removed, running a custom script, and other features.
deluser and delgroup
can be run in one of three modes:
Remove a normal user
If called with one non-option argument and without the
will remove a normal user.
will remove the user without removing the home directory, the mail spool or
any other files on the system owned by the user. Removing the home directory
and mail spool can be achieved using the
option removes all files on the system owned by the user. Note that if
you activate both options
will have no effect because all files including the home directory and mail
spool are already covered by the
If you want to backup all files before deleting them you can activate the
option which will create a file username.tar(.gz|.bz2) in the
directory specified by the
option (defaulting to the current working directory). Both the remove
and backup options can also be activated for default in the configuration
file /etc/deluser.conf. See
If you want to remove the root account (uid 0), then use the
parameter; this may prevent to remove the root user by accident.
If the file
exists, it will be executed after the user account has been removed
in order to do any local cleanup. The arguments passed to
username uid gid home-directory
Remove a group
is called with the --group
option, or delgroup
is called, a group will be removed.
Warning: The primary group of an existing user cannot be removed.
If the option
is given, the group won't be removed if it has any members left.
Remove a user from a specific group
If called with two non-option arguments,
will remove a user from a specific group.
- --conf FILE
Use FILE instead of the default files
Remove a group. This is the default action if the program is invoked
Display brief instructions.
Suppress progress messages.
Only delete if user/group is a system user/group. This avoids
accidentally deleting non-system users/groups. Additionally, if the
user does not exist, no error value is returned. This option is mainly
for use in Debian package maintainer scripts.
Only remove if no members are left.
Backup all files contained in the userhome and the mailspool-file to a file named
/$user.tar.bz2 or /$user.tar.gz.
Place the backup files not in / but in the directory specified by this parameter. This implicitly sets --backup also.
Remove the home directory of the user and its mailspool. If --backup is specified,
the files are deleted after having performed the backup.
Remove all files from the system owned by this user. Note: --remove-home does
not have an effect any more. If --backup is specified, the files are deleted after
having performed the backup.
Display version and copyright information.
The action was successfully executed.
The user to delete was not a system account. No action was performed.
There is no such user. No action was performed.
There is no such group. No action was performed.
Internal error. No action was performed.
The group to delete is not empty. No action was performed.
The user does not belong to the specified group. No action was performed.
You cannot remove a user from its primary group. No action was performed.
The required perl-package 'perl modules' is not installed. This package is required to perform the requested actions. No action was performed.
For removing the root account the parameter "--force" is required. No action was performed.
Default configuration file for deluser and delgroup
Optional custom add-ons.
Copyright (C) 2000 Roland Bauerschmidt. Modifications (C) 2004
Marc Haber and Joerg Hoh.
This manpage and the deluser program are based on adduser which is:
Copyright (C) 1997, 1998, 1999 Guy Maor.
Copyright (C) 1995 Ted Hajek, with a great deal borrowed from the original
Copyright (C) 1994 Ian Murdock.
is free software; see the GNU General Public Licence version 2 or
later for copying conditions. There is