GROUP(5) Linux Programmer's Manual GROUP(5)
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:
group_name:password:GID:user_list
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, sepa‐
rated by commas.
/etc/group
As the 4.2BSD initgroups(3) man page says: no one seems to keep
/etc/group up-to-date.
chgrp(1), gpasswd(1), groups(1), login(1), newgrp(1), sg(1),
getgrent(3), getgrnam(3), gshadow(5), passwd(5), vigr(8)
This page is part of release 5.08 of the Linux man-pages project. A
description of the project, information about reporting bugs, and the
latest version of this page, can be found at
https://www.kernel.org/doc/man-pages/.
Linux 2020-04-11 GROUP(5)
Pages that refer to this page: gpasswd(1) , lslogins(1) , newgrp(1) , newgrp(1@@util-linux) , sg(1) , endgrent(3) , fgetgrent(3) , fgetgrent_r(3) , getgrent(3) , getgrent_r(3) , getgrgid(3) , getgrgid_r(3) , getgrnam(3) , getgrnam_r(3) , getgrouplist(3) , group_member(3) , putgrent(3) , setgrent(3) , gshadow(5) , passwd(5) , credentials(7) , grpck(8) , nscd(8) , pwck(8) , vigr(8) , vigr(8@@util-linux) , vipw(8)
Copyright and license for this manual page