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group(5) [v7 man page]

GROUP(5)							File Formats Manual							  GROUP(5)

NAME
group - group file DESCRIPTION
Group contains for each group the following information: group name encrypted password numerical group ID a comma separated list of all users allowed in the group This is an ASCII file. The fields are separated by colons; Each group is separated from the next by a new-line. If the password field is null, no password is demanded. This file resides in directory /etc. Because of the encrypted passwords, it can and does have general read permission and can be used, for example, to map numerical group ID's to names. FILES
/etc/group SEE ALSO
newgrp(1), crypt(3), passwd(1), passwd(5) GROUP(5)

Check Out this Related Man Page

GROUP(5)						     Linux Programmer's Manual							  GROUP(5)

NAME
group - user group file DESCRIPTION
/etc/group is a text file which defines the groups on the system. There is one entry per line, with the following format: group_name:password: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 a list of the usernames that are members of this group, separated by commas. FILES
/etc/group BUGS
As the 4.2BSD initgroups(3) man page says: No-one seems to keep /etc/group up-to-date. SEE ALSO
login(1), newgrp(1), getgrent(3), getgrnam(3), passwd(5) COLOPHON
This page is part of release 3.27 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/. Linux 2009-10-17 GROUP(5)

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