groupmod; man page

Man Pages Index

SYNOPSIS
       groupmod [options] GROUP

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

OPTIONS
       The options which apply to the groupmod command are:

       -g, --gid GID
          Specify the new group ID for the GROUP. The numerical value of the
          GID must be a non-negative decimal integer. This value must be
          unique, unless the -o option is used. Values between 0 and 999 are
          typically reserved for system groups. Any files which the old group
          ID is the file group ID must have the file group ID changed
          manually.

       -h, --help
          Display help message and exit.

       -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
          non-unique value.

FILES
       /etc/group
          Group account information.

       /etc/gshadow
          Secure group account information.

EXIT VALUES
       The groupmod command exits with the following values:

       0  success

       2  invalid command syntax

       3  invalid argument to option

       4  specified group doesn’t exist

       6  specified group doesn’t exist

       9  group name already in use

       10 can’t update group file
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