1 .\" Copyright (c) 1991, 1993
2 .\" The Regents of the University of California. All rights reserved.
4 .\" This code is derived from software contributed to Berkeley by
5 .\" the Institute of Electrical and Electronics Engineers, Inc.
7 .\" Redistribution and use in source and binary forms, with or without
8 .\" modification, are permitted provided that the following conditions
10 .\" 1. Redistributions of source code must retain the above copyright
11 .\" notice, this list of conditions and the following disclaimer.
12 .\" 2. Redistributions in binary form must reproduce the above copyright
13 .\" notice, this list of conditions and the following disclaimer in the
14 .\" documentation and/or other materials provided with the distribution.
15 .\" 3. Neither the name of the University nor the names of its contributors
16 .\" may be used to endorse or promote products derived from this software
17 .\" without specific prior written permission.
19 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 .\" @(#)id.1 8.1 (Berkeley) 6/6/93
32 .\" $FreeBSD: src/usr.bin/id/id.1,v 1.7.2.3 2001/08/16 13:16:50 ru Exp $
33 .\" $DragonFly: src/usr.bin/id/id.1,v 1.2 2003/06/17 04:29:27 dillon Exp $
40 .Nd return user identity
62 utility displays the user and group names and numeric IDs, of the
63 calling process, to the standard output.
64 If the real and effective IDs are different, both are displayed,
65 otherwise only the real ID is displayed.
69 (login name or user ID)
70 is specified, the user and group IDs of that user are displayed.
71 In this case, the real and effective IDs are assumed to be the same.
73 The options are as follows:
74 .Bl -tag -width indent
76 Display the different group IDs (effective, real and supplementary)
77 as white-space separated numbers, in no particular order.
79 Display the id as a password file entry.
81 Display the effective group ID as a number.
83 Display the name of the user or group ID for the
88 options instead of the number.
89 If any of the ID numbers cannot be mapped into names, the number will be
92 Make the output human-readable.
93 If the user name returned by
95 is different from the login name referenced by the user ID, the name
98 is displayed, preceded by the keyword
100 The user ID as a name is displayed, preceded by the keyword
102 If the effective user ID is different from the real user ID, the real user
103 ID is displayed as a name, preceded by the keyword
105 If the effective group ID is different from the real group ID, the real group
106 ID is displayed as a name, preceded by the keyword
108 The list of groups to which the user belongs is then displayed as names,
109 preceded by the keyword
111 Each display is on a separate line.
113 Display the real ID for the
117 options instead of the effective ID.
119 Display the effective user ID as a number.
128 function is expected to conform to
134 command is equivalent to
135 .Dq Nm id Fl Gn Op Ar user .
140 command is equivalent to