Originální popis anglicky:
group - user group file
/etc/group is an ASCII file which defines the groups to which users
belong. There is one entry per line, and each line has the format:
group_name:passwd: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
- all the group member's user names, separated by
commas.
As the 4.2BSD
initgroups(3) man page says: Noone seems to keep /etc/group
up-to-date.
/etc/group
login(1),
newgrp(1),
passwd(5)
