git.saurik.com Git - apple/shell_cmds.git/blame_incremental

... / ...

Commit	Line	Data
	1	.\" Copyright (c) 1991, 1993
	2	.\" The Regents of the University of California. All rights reserved.
	3	.\"
	4	.\" This code is derived from software contributed to Berkeley by
	5	.\" the Institute of Electrical and Electronics Engineers, Inc.
	6	.\"
	7	.\" Redistribution and use in source and binary forms, with or without
	8	.\" modification, are permitted provided that the following conditions
	9	.\" are met:
	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. All advertising materials mentioning features or use of this software
	16	.\" must display the following acknowledgement:
	17	.\" This product includes software developed by the University of
	18	.\" California, Berkeley and its contributors.
	19	.\" 4. Neither the name of the University nor the names of its contributors
	20	.\" may be used to endorse or promote products derived from this software
	21	.\" without specific prior written permission.
	22	.\"
	23	.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	24	.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	25	.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	26	.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	27	.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	28	.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	29	.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	30	.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	31	.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	32	.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	33	.\" SUCH DAMAGE.
	34	.\"
	35	.\" @(#)id.1 8.1 (Berkeley) 6/6/93
	36	.\" $FreeBSD: src/usr.bin/id/id.1,v 1.11 2001/08/15 09:09:41 ru Exp $
	37	.\"
	38	.Dd June 6, 1993
	39	.Dt ID 1
	40	.Os
	41	.Sh NAME
	42	.Nm id
	43	.Nd return user identity
	44	.Sh SYNOPSIS
	45	.Nm
	46	.Op Ar user
	47	.Nm
	48	.Fl G Op Fl n
	49	.Op Ar user
	50	.Nm
	51	.Fl P
	52	.Op Ar user
	53	.Nm
	54	.Fl g Op Fl nr
	55	.Op Ar user
	56	.Nm
	57	.Fl p
	58	.Op Ar user
	59	.Nm
	60	.Fl u Op Fl nr
	61	.Op Ar user
	62	.Sh DESCRIPTION
	63	The
	64	.Nm
	65	utility displays the user and group names and numeric IDs, of the
	66	calling process, to the standard output.
	67	If the real and effective IDs are different, both are displayed,
	68	otherwise only the real ID is displayed.
	69	.Pp
	70	If a
	71	.Ar user
	72	(login name or user ID)
	73	is specified, the user and group IDs of that user are displayed.
	74	In this case, the real and effective IDs are assumed to be the same.
	75	.Pp
	76	The options are as follows:
	77	.Bl -tag -width indent
	78	.It Fl G
	79	Display the different group IDs (effective, real and supplementary)
	80	as white-space separated numbers, in no particular order.
	81	.It Fl P
	82	Display the id as a password file entry.
	83	.It Fl g
	84	Display the effective group ID as a number.
	85	.It Fl n
	86	Display the name of the user or group ID for the
	87	.Fl G ,
	88	.Fl g
	89	and
	90	.Fl u
	91	options instead of the number.
	92	If any of the ID numbers cannot be mapped into names, the number will be
	93	displayed as usual.
	94	.It Fl p
	95	Make the output human-readable.
	96	If the user name returned by
	97	.Xr getlogin 2
	98	is different from the login name referenced by the user ID, the name
	99	returned by
	100	.Xr getlogin 2
	101	is displayed, preceded by the keyword
	102	.Dq login .
	103	The user ID as a name is displayed, preceded by the keyword
	104	.Dq uid .
	105	If the effective user ID is different from the real user ID, the real user
	106	ID is displayed as a name, preceded by the keyword
	107	.Dq euid .
	108	If the effective group ID is different from the real group ID, the real group
	109	ID is displayed as a name, preceded by the keyword
	110	.Dq rgid .
	111	The list of groups to which the user belongs is then displayed as names,
	112	preceded by the keyword
	113	.Dq groups .
	114	Each display is on a separate line.
	115	.It Fl r
	116	Display the real ID for the
	117	.Fl g
	118	and
	119	.Fl u
	120	options instead of the effective ID.
	121	.It Fl u
	122	Display the effective user ID as a number.
	123	.El
	124	.Sh DIAGNOSTICS
	125	.Ex -std
	126	.Sh SEE ALSO
	127	.Xr who 1
	128	.Sh STANDARDS
	129	The
	130	.Nm
	131	function is expected to conform to
	132	.St -p1003.2 .
	133	.Sh HISTORY
	134	The
	135	historic
	136	.Xr groups 1
	137	command is equivalent to
	138	.Dq Nm id Fl Gn Op Ar user .
	139	.Pp
	140	The
	141	historic
	142	.Xr whoami 1
	143	command is equivalent to
	144	.Dq Nm id Fl un .
	145	.Pp
	146	The
	147	.Nm
	148	command appeared in
	149	.Bx 4.4 .