Provided by: passwd_4.2-3.1ubuntu5.4_amd64 bug

NAMN

       groupmod - ändra en gruppdefinition på systemet

SYNOPSIS

       groupmod [flaggor] GRUPP

BESKRIVNING

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

FLAGGOR

       Flaggorna som gäller för kommandot groupmod är:

       -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.

           Users who use the group as primary group will be updated to keep the group as their
           primary group.

           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
           Visa hjälpmeddelande och avsluta.

       -n, --new-name NY_GRUPP
           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 LÖSENORD
           Det krypterade lösenordet, som returneras av crypt(3).

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

           You should make sure the password respects the system's password policy.

       -R, --root CHROOT_DIR
           Apply changes in the CHROOT_DIR directory and use the configuration files from the
           CHROOT_DIR directory.

CONFIGURATION

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

       MAX_MEMBERS_PER_GROUP (number)
           Maximum members per group entry. When the maximum is reached, a new group entry (line)
           is started in /etc/group (with the same name, same password, and same GID).

           The default value is 0, meaning that there are no limits in the number of members in a
           group.

           This feature (split group) permits to limit the length of lines in the group file.
           This is useful to make sure that lines for NIS groups are not larger than 1024
           characters.

           If you need to enforce such limit, you can use 25.

           Note: split groups may not be supported by all tools (even in the Shadow toolsuite).
           You should not use this variable unless you really need it.

FILER

       /etc/group
           Gruppkontoinformation.

       /etc/gshadow
           Säker gruppkontoinformation.

       /etc/login.defs
           Shadow password suite configuration.

       /etc/passwd
           Användarkontoinformation.

AVSLUTNINGSVÄRDEN

       Kommandot groupmod avslutas med följande värden:

       0
           lyckad

       2
           ogiltig kommandosyntax

       3
           ogiltigt argument till flagga

       4
           angiven grupp finns inte

       6
           angiven grupp finns inte

       9
           gruppnamnet används redan

       10
           kan inte uppdatera gruppfilen

SE OCKSÅ

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