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,
separated 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)
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latest version of this page, can be found at
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Linux 2016-10-08 GROUP(5)
Pages that refer to this page: gpasswd(1), lslogins(1), newgrp(1), newgrp(1@@util-linux), sg(1), fgetgrent(3), getgrent(3), getgrent_r(3), getgrnam(3), getgrouplist(3), group_member(3), putgrent(3), gshadow(5), passwd(5), credentials(7), grpck(8), nscd(8), pwck(8), vigr(8), vigr(8@@util-linux), vipw(8)