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),
vigr(8)