The
groupmod utility modifies an existing group on the system. See
group(8) for more information about
EXTENSIONS. The options are as follows:
-g gid
Give the numeric group identifier to be used for the new group.
-n new-group-name
Give the new name which the group shall have.
-o
Allow the new group to have a gid which is already in use for another group.
-v
Enable verbose mode - explain the commands as they are executed. This option is included if built with EXTENSIONS.