group(F)
group --
format of the group file
Format
groupname:password:GID:users
Network Information Service (NIS) entries
+[groupname]:[password]::[users]
-groupname:
Description
/etc/group is an ASCII file. Each entry in
group occupies one line and describes one group.
Each line contains the following four colon-separated
fields:
groupname-
group name
password-
encrypted group password (unused)
GID-
numerical group ID
users-
comma-separated list of all users allowed
in the group
The encrypted group password field is not used, and is set to null.
/etc/group must have general read
permission. It can be used, for example, to map
numerical group IDs to names.
Network Information Service (NIS) entries
Entries in group beginning with ``+''
incorporate information obtained from NIS.
A ``+:::''
entry has the effect of inserting the entire NIS
group file at that point. If groupname is
specified, the entry for that group is inserted. If a list of
users is specified, this adds the corresponding
list obtained from NIS.
An entry beginning with ``-'' excludes the specified group
name, groupname. Any subsequent entries in group or
obtained from NIS for that group are ignored.
Examples
Define a group local, add giant's list
of members to the NIS list, and include all
groups obtainable from NIS after this entry:
local::100:fran,stan
+giant:::bill,tina,alan,hetty
+:::
Files
/etc/group-
full pathname of group
See also
netgroup(NF),
newgrp(C),
passwd(C),
passwd(F)
Standards conformance
group is conformant with:
NIST FIPS 151
2;
AT&T SVID Issue 2;
X/Open Portability Guide, Issue 3, 1990.
© 2003 Caldera International, Inc. All rights reserved.
SCO OpenServer Release 5.0.7 -- 11 February 2003