group - user group file
The /etc/group file is a text file that defines the groups on the system. There is one entry per line, with the following format:
The fields are as follows:
group_name the name of the group. password the (encrypted) group password. If this field is empty, no password is needed. GID the numeric group ID. user_list a list of the usernames that are members of this group, separated by commas.
As the 4.2BSD initgroups(3) man page says: No-one seems to keep /etc/group up-to-date.
login(1), newgrp(1), getgrent(3), getgrnam(3), passwd(5)
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.