1 .\" $NetBSD: userinfo.8,v 1.15 2008/02/27 19:12:56 reed Exp $ */
3 .\" Copyright (c) 1999 Alistair G. Crooks. All rights reserved.
5 .\" Redistribution and use in source and binary forms, with or without
6 .\" modification, are permitted provided that the following conditions
8 .\" 1. Redistributions of source code must retain the above copyright
9 .\" notice, this list of conditions and the following disclaimer.
10 .\" 2. Redistributions in binary form must reproduce the above copyright
11 .\" notice, this list of conditions and the following disclaimer in the
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13 .\" 3. The name of the author may not be used to endorse or promote
14 .\" products derived from this software without specific prior written
17 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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19 .\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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22 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
23 .\" GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 .\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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35 .Nd displays user information
43 utility retrieves the user information from the system.
46 utility is only available if built with
52 The following command line option is recognised:
55 Return 0 if the user exists, and non-zero if the
56 user does not exist, on the system.
57 No information is displayed.
58 This form of the command is useful for
59 scripts which need to check whether a particular user
60 name or uid is already in use on the system.
65 argument may either be a user's name, or a uid.
77 utility first appeared in
81 package by the same author.
85 utility was written by
86 .An Alistair G. Crooks