Annotation of src/usr.bin/id/id.1, Revision 1.1
1.1 ! deraadt 1: .\" $NetBSD: id.1,v 1.5 1995/09/28 08:05:40 perry Exp $
! 2: .\"
! 3: .\" Copyright (c) 1991, 1993, 1994
! 4: .\" The Regents of the University of California. All rights reserved.
! 5: .\"
! 6: .\" This code is derived from software contributed to Berkeley by
! 7: .\" the Institute of Electrical and Electronics Engineers, Inc.
! 8: .\"
! 9: .\" Redistribution and use in source and binary forms, with or without
! 10: .\" modification, are permitted provided that the following conditions
! 11: .\" are met:
! 12: .\" 1. Redistributions of source code must retain the above copyright
! 13: .\" notice, this list of conditions and the following disclaimer.
! 14: .\" 2. Redistributions in binary form must reproduce the above copyright
! 15: .\" notice, this list of conditions and the following disclaimer in the
! 16: .\" documentation and/or other materials provided with the distribution.
! 17: .\" 3. All advertising materials mentioning features or use of this software
! 18: .\" must display the following acknowledgement:
! 19: .\" This product includes software developed by the University of
! 20: .\" California, Berkeley and its contributors.
! 21: .\" 4. Neither the name of the University nor the names of its contributors
! 22: .\" may be used to endorse or promote products derived from this software
! 23: .\" without specific prior written permission.
! 24: .\"
! 25: .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 26: .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 27: .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 28: .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 29: .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 30: .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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! 32: .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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! 34: .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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! 36: .\"
! 37: .\" @(#)id.1 8.2 (Berkeley) 5/5/94
! 38: .\"
! 39: .Dd "May 5, 1994"
! 40: .Dt ID 1
! 41: .Os BSD 4.4
! 42: .Sh NAME
! 43: .Nm id
! 44: .Nd return user identity
! 45: .Sh SYNOPSIS
! 46: .Nm id
! 47: .Op Ar user
! 48: .Nm id
! 49: .Fl G Op Fl n
! 50: .Op Ar user
! 51: .Nm id
! 52: .Fl g Op Fl nr
! 53: .Op Ar user
! 54: .Nm id
! 55: .Fl p
! 56: .Nm id
! 57: .Fl u Op Fl nr
! 58: .Op Ar user
! 59: .Sh DESCRIPTION
! 60: The
! 61: .Nm id
! 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.
! 66: .Pp
! 67: If a
! 68: .Ar user
! 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.
! 72: .Pp
! 73: The options are as follows:
! 74: .Bl -tag -width Ds
! 75: .It Fl G
! 76: Display the different group IDs (effective, real and supplementary)
! 77: as white-space separated numbers, in no particular order.
! 78: .It Fl g
! 79: Display the effective group ID as a number.
! 80: .It Fl n
! 81: Display the name of the user or group ID for the
! 82: .Fl G ,
! 83: .Fl g
! 84: and
! 85: .Fl u
! 86: options instead of the number.
! 87: If any of the ID numbers cannot be mapped into names, the number will be
! 88: displayed as usual.
! 89: .It Fl p
! 90: Make the output human-readable.
! 91: If the user name returned by
! 92: .Xr getlogin 2
! 93: is different from the login name referenced by the user ID, the name
! 94: returned by
! 95: .Xr getlogin 2
! 96: is displayed, preceded by the keyword ``login''.
! 97: The user ID as a name is displayed, preceded by the keyword ``uid''.
! 98: If the effective user ID is different from the real user ID, the real user
! 99: ID is displayed as a name, preceded by the keyword ``euid''.
! 100: If the effective group ID is different from the real group ID, the real group
! 101: ID is displayed as a name, preceded by the keyword ``rgid''.
! 102: The list of groups to which the user belongs is then displayed as names,
! 103: preceded by the keyword ``groups''.
! 104: Each display is on a separate line.
! 105: .It Fl r
! 106: Display the real ID for the
! 107: .Fl g
! 108: and
! 109: .Fl u
! 110: options instead of the effective ID.
! 111: .It Fl u
! 112: Display the effective user ID as a number.
! 113: .El
! 114: .Pp
! 115: The
! 116: .Nm id
! 117: utility exits 0 on success, and >0 if an error occurs.
! 118: .Sh SEE ALSO
! 119: .Xr who 1
! 120: .Sh STANDARDS
! 121: The
! 122: .Nm id
! 123: function is expected to conform to
! 124: .St -p1003.2 .
! 125: .Sh HISTORY
! 126: The
! 127: historic
! 128: .Xr groups 1
! 129: command is equivalent to
! 130: .Dq Nm id Fl Gn Op Ar user .
! 131: .Pp
! 132: The
! 133: historic
! 134: .Xr whoami 1
! 135: command is equivalent to
! 136: .Dq Nm id Fl un .
! 137: .Pp
! 138: The
! 139: .Nm id
! 140: command first appeared in
! 141: .Bx 4.4 .
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