linux - group (5)

NAME

       group - user group file

DESCRIPTION

       /etc/group  is  an  ASCII file which defines the groups to
       which users belong.  There is one entry per line, and each
       line has the format:

              group_name:passwd:GID:user_list

       The field descriptions are:

       group_name
              the name of the group.

       password
              the  (encrypted)  group password.  If this field is
              empty, no password is needed.

       GID    the numerical group ID.

       user_list
              all the group member's  user  names,  separated  by
              commas.

FILES

       /etc/group

SEE ALSO

       login(1), newgrp(1), passwd(5)