NAME

       groupmod - ändert die Eigenschaften einer Gruppe auf dem System

ÜBERSICHT

       groupmod [Optionen] GRUPPE

BESCHREIBUNG

       The groupmod command modifies the definition of the specified GROUP by modifying the
       appropriate entry in the group database.

OPTIONEN

       The options which apply to the groupmod command are:

       -a, --append GID
           If group members are specified with -U, append them to the existing member list,
           rather than replacing it.

       -g, --gid GID
           The group ID of the given GROUP will be changed to GID.

           The value of GID must be a non-negative decimal integer. This value must be unique,
           unless the -o option is used.

           Benutzer, welche die Gruppe als Hauptgruppe verwenden, werden aktualisiert, um die
           Gruppe als Hauptgruppe zu behalten.

           Any files that have the old group ID and must continue to belong to GROUP, must have
           their group ID changed manually.

           No checks will be performed with regard to the GID_MIN, GID_MAX, SYS_GID_MIN, or
           SYS_GID_MAX from /etc/login.defs.

       -h, --help
           zeigt die Hilfe an und beendet das Programm

       -n, --new-name NEW_GROUP
           The name of the group will be changed from GROUP to NEW_GROUP name.

       -o, --non-unique
           When used with the -g option, allow to change the group GID to a non-unique value.

       -p, --password PASSWORD
           The encrypted password, as returned by crypt(3).

           Note: This option is not recommended because the password (or encrypted password) will
           be visible by users listing the processes.

           Sie sollten sicherstellen, dass das Passwort den Passwortrichtlinien des Systems
           entspricht.

       -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.

       -U, --users
           A list of usernames to add as members of the group.

           The default behavior (if the -g, -N, and -U options are not specified) is defined by
           the USERGROUPS_ENAB variable in /etc/login.defs.

KONFIGURATION

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

DATEIEN

       /etc/group
           Informationen zu den Gruppenkonten

       /etc/gshadow
           sichere Informationen zu den Gruppenkonten

       /etc/login.defs
           Konfiguration der Shadow-Passwort-Werkzeugsammlung

       /etc/passwd
           Informationen zu den Benutzerkonten

RÜCKGABEWERTE

       The groupmod command exits with the following values:

       0
           E_SUCCESS: success

       2
           E_USAGE: invalid command syntax

       3
           E_BAD_ARG: invalid argument to option

       4
           E_GID_IN_USE: group id already in use

       6
           E_NOTFOUND: specified group doesn't exist

       9
           E_NAME_IN_USE: group name already in use

       10
           E_GRP_UPDATE: can't update group file

       11
           E_CLEANUP_SERVICE: can't setup cleanup service

       12
           E_PAM_USERNAME: can't determine your username for use with pam

       13
           E_PAM_ERROR: pam returned an error, see syslog facility id groupmod for the PAM error
           message

SIEHE AUCH

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