USERS(6)USERS(6)
NAME
users – file server user list format
DESCRIPTION
The permanent file servers each maintain a private list of users
and groups, in
/adm/users
by convention.
Each line in the file has the format
id:name:leader:members
where
name
and
leader
are printable strings excluding the characters
?,
=,
+,
-,
/,
and
:,
and
members
is a comma-separated list of such strings.
Such a line defines a user and a group with the given
name;
the group has a group leader given by
leader
and group members given by the user names in
members.
The
leader
field may be empty,
in which case any group member is a group leader.
The
members
field may be empty.
Lines beginning with
#
are ignored.
The
id
in a line is an identifier used in the on-disk structures maintained
by a file server; there should be no duplicate
ids
in the file.
In older Plan 9 file servers,
ids
are small decimal numbers.
In those,
a negative
id
is special: a user with a negative
id
cannot attach to the file server.
The file
/adm/users
itself is owned by user
adm
and write protected to others,
so it can only be changed via console commands.
SEE ALSO
intro(5),
stat(5),