1GROUP(5) Linux Programmer's Manual GROUP(5)
2
3
4
6 group - user group file
7
9 The /etc/group file is a text file that defines the groups on the sys‐
10 tem. There is one entry per line, with the following format:
11
12 group_name:password:GID:user_list
13
14 The fields are as follows:
15
16 group_name
17 the name of the group.
18
19 password
20 the (encrypted) group password. If this field is empty, no
21 password is needed.
22
23 GID the numeric group ID.
24
25 user_list
26 a list of the usernames that are members of this group, sepa‐
27 rated by commas.
28
30 /etc/group
31
33 As the 4.2BSD initgroups(3) man page says: no one seems to keep
34 /etc/group up-to-date.
35
37 chgrp(1), gpasswd(1), groups(1), login(1), newgrp(1), sg(1), get‐
38 grent(3), getgrnam(3), gshadow(5), passwd(5), vigr(8)
39
41 This page is part of release 5.13 of the Linux man-pages project. A
42 description of the project, information about reporting bugs, and the
43 latest version of this page, can be found at
44 https://www.kernel.org/doc/man-pages/.
45
46
47
48Linux 2020-04-11 GROUP(5)