154 lines
4.4 KiB
Groff
154 lines
4.4 KiB
Groff
.\" Copyright (c) 1991, 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" This code is derived from software contributed to Berkeley by
|
|
.\" the Institute of Electrical and Electronics Engineers, Inc.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by the University of
|
|
.\" California, Berkeley and its contributors.
|
|
.\" 4. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" @(#)id.1 8.1 (Berkeley) 6/6/93
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd May 3, 2004
|
|
.Dt ID 1
|
|
.Os
|
|
.Sh NAME
|
|
.Nm id
|
|
.Nd return user identity
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Op Ar user
|
|
.Nm
|
|
.Fl G Op Fl n
|
|
.Op Ar user
|
|
.Nm
|
|
.Fl M
|
|
.Nm
|
|
.Fl P
|
|
.Op Ar user
|
|
.Nm
|
|
.Fl g Op Fl nr
|
|
.Op Ar user
|
|
.Nm
|
|
.Fl p
|
|
.Op Ar user
|
|
.Nm
|
|
.Fl u Op Fl nr
|
|
.Op Ar user
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
utility displays the user and group names and numeric IDs, of the
|
|
calling process, to the standard output.
|
|
If the real and effective IDs are different, both are displayed,
|
|
otherwise only the real ID is displayed.
|
|
.Pp
|
|
If a
|
|
.Ar user
|
|
(login name or user ID)
|
|
is specified, the user and group IDs of that user are displayed.
|
|
In this case, the real and effective IDs are assumed to be the same.
|
|
.Pp
|
|
The options are as follows:
|
|
.Bl -tag -width indent
|
|
.It Fl G
|
|
Display the different group IDs (effective, real and supplementary)
|
|
as white-space separated numbers, in no particular order.
|
|
.It Fl M
|
|
Display the MAC label of the current prorcess.
|
|
.It Fl P
|
|
Display the id as a password file entry.
|
|
.It Fl g
|
|
Display the effective group ID as a number.
|
|
.It Fl n
|
|
Display the name of the user or group ID for the
|
|
.Fl G ,
|
|
.Fl g
|
|
and
|
|
.Fl u
|
|
options instead of the number.
|
|
If any of the ID numbers cannot be mapped into names, the number will be
|
|
displayed as usual.
|
|
.It Fl p
|
|
Make the output human-readable.
|
|
If the user name returned by
|
|
.Xr getlogin 2
|
|
is different from the login name referenced by the user ID, the name
|
|
returned by
|
|
.Xr getlogin 2
|
|
is displayed, preceded by the keyword
|
|
.Dq login .
|
|
The user ID as a name is displayed, preceded by the keyword
|
|
.Dq uid .
|
|
If the effective user ID is different from the real user ID, the real user
|
|
ID is displayed as a name, preceded by the keyword
|
|
.Dq euid .
|
|
If the effective group ID is different from the real group ID, the real group
|
|
ID is displayed as a name, preceded by the keyword
|
|
.Dq rgid .
|
|
The list of groups to which the user belongs is then displayed as names,
|
|
preceded by the keyword
|
|
.Dq groups .
|
|
Each display is on a separate line.
|
|
.It Fl r
|
|
Display the real ID for the
|
|
.Fl g
|
|
and
|
|
.Fl u
|
|
options instead of the effective ID.
|
|
.It Fl u
|
|
Display the effective user ID as a number.
|
|
.El
|
|
.Sh EXIT STATUS
|
|
.Ex -std
|
|
.Sh SEE ALSO
|
|
.Xr who 1
|
|
.Sh STANDARDS
|
|
The
|
|
.Nm
|
|
function is expected to conform to
|
|
.St -p1003.2 .
|
|
.Sh HISTORY
|
|
The
|
|
historic
|
|
.Xr groups 1
|
|
command is equivalent to
|
|
.Dq Nm id Fl Gn Op Ar user .
|
|
.Pp
|
|
The
|
|
historic
|
|
.Xr whoami 1
|
|
command is equivalent to
|
|
.Dq Nm id Fl un .
|
|
.Pp
|
|
The
|
|
.Nm
|
|
command appeared in
|
|
.Bx 4.4 .
|