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USERDEL(8) System Management Commands USERDEL(8)

NAME

userdel - löscht ein Benutzerkonto und die dazugehörigen Dateien

ÜBERSICHT

userdel [options] LOGIN

BESCHREIBUNG

userdel is a low level utility for removing users. On Debian, administrators should usually use deluser(8) instead.

The userdel command modifies the system account files, deleting all entries that refer to the user name LOGIN. The named user must exist.

OPTIONEN

The options which apply to the userdel command are:

-f, --force

This option forces the removal of the user account and any other requested actions, skipping any safety checks.

Note: This option is dangerous and may leave your system in an inconsistent state.

-h, --help

zeigt die Hilfe an und beendet das Programm.

-r, --remove

entfernt das persönliche Verzeichnis des Benutzers mit den darin enthaltenen Dateiein und die Mail-Warteschlange. Dateien in anderen Dateisystemen müssen per Hand gesucht und gelöscht werden.

The mail spool is defined by the MAIL_DIR variable in the login.defs file.

-R, --root CHROOT_DIR

Apply changes in the CHROOT_DIR directory and use the configuration files from the CHROOT_DIR directory. Only absolute paths are supported.

-P, --prefix PREFIX_DIR

Apply changes in the PREFIX_DIR directory and use the configuration files from the PREFIX_DIR directory. This option does not chroot and is intended for preparing a cross-compilation target. Some limitations: NIS and LDAP users/groups are not verified. PAM authentication is using the host files. No SELINUX support.

-Z, --selinux-user

entfernt jegliche Zuordnung zu SELinux-Benutzern für das Benutzerkonto.

KONFIGURATION

The following configuration variables in /etc/login.defs change the behavior of this tool:

DATEIEN

/etc/group

Informationen zu den Gruppenkonten

/etc/login.defs

konfiguriert die Shadow-Hilfsprogramme.

/etc/passwd

Informationen zu den Benutzerkonten

/etc/shadow

geschützte Informationen zu den Benutzerkonten

/etc/shadow-maint/userdel-pre.d/*, /etc/shadow-maint/userdel-post.d/*

Run-part files to execute during user deletion. The environment variable ACTION will be populated with userdel and SUBJECT with the username. userdel-pre.d will be executed prior to any user deletion. userdel-post.d will execute after user deletion. If a script exits non-zero then execution will terminate.

/etc/subgid

enthält untergeordnete Gruppenkennungen der einzelnen Benutzer.

/etc/subuid

enthält untergeordnete Benutzerkennungen der einzelnen Benutzer.

RÜCKGABEWERTE

The userdel command exits with the following values:

0

success

1

can't update password file

2

invalid command syntax

6

specified user doesn't exist

8

user currently logged in

10

can't update group file

12

can't remove home directory

WARNUNGEN

userdel will not allow you to remove an account if there are running processes which belong to this account. In that case, you may have to kill those processes or lock the user's password or account and remove the account later. The -f option can force the deletion of this account.

Sie sollten von Hand alle Dateisysteme in Hinblick auf Dateien dieses Benutzers prüfen und sie gegebenenfalls löschen.

Sie dürfen keine NIS-Attribute auf einem NIS-Client löschen. Dies muss auf dem NIS-Server durchgeführt werden.

If USERGROUPS_ENAB is defined to yes in /etc/login.defs, userdel will delete the group with the same name as the user. To avoid inconsistencies in the passwd and group databases, userdel will check that this group is not used as a primary group for another user, and will just warn without deleting the group otherwise. The -f option can force the deletion of this group.

SIEHE AUCH

chfn(1), chsh(1), passwd(1), login.defs(5), gpasswd(8), groupadd(8), groupdel(8), groupmod(8), subgid(5), subuid(5), useradd(8), usermod(8).

08.01.2025 shadow-utils 4.17.1