freebsd-dev/usr.sbin/chown/chgrp.1

.\" Copyright (c) 1983, 1990, 1993, 1994
.\"	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.
.\" 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.
.\"
.\"     @(#)chgrp.1	8.3 (Berkeley) 3/31/94
.\" $FreeBSD$
.\"
.Dd April 25, 2003
.Dt CHGRP 1
.Os
.Sh NAME
.Nm chgrp
.Nd change group
.Sh SYNOPSIS
.Nm
.Op Fl fhv
.Oo
.Fl R
.Op Fl H | Fl L | Fl P
.Oc
.Ar group
.Ar
.Sh DESCRIPTION
The
.Nm
utility sets the group ID of the file named by each
.Ar file
operand to the
.Ar group
ID specified by the group operand.
.Pp
The following options are available:
.Bl -tag -width indent
.It Fl H
If the
.Fl R
option is specified, symbolic links on the command line are followed.
(Symbolic links encountered in the tree traversal are not followed).
.It Fl L
If the
.Fl R
option is specified, all symbolic links are followed.
.It Fl P
If the
.Fl R
option is specified, no symbolic links are followed.
This is the default.
.It Fl R
Change the group ID for the file hierarchies rooted
in the files instead of just the files themselves.
.It Fl f
The force option ignores errors, except for usage errors and does not
query about strange modes (unless the user does not have proper permissions).
.It Fl h
If the file is a symbolic link, the group ID of the link itself is changed
rather than the file that is pointed to.
.It Fl v
Cause
.Nm
to be verbose, showing files as the group is modified.
If the
.Fl v
flag is specified more than once,
.Nm
will print the filename, followed by the old and new numeric group ID.
.El
.Pp
The
.Fl H ,
.Fl L
and
.Fl P
options are ignored unless the
.Fl R
option is specified.
In addition, these options override each other and the
command's actions are determined by the last one specified.
.Pp
The
.Ar group
operand can be either a group name from the group database,
or a numeric group ID.
If a group name is also a numeric group ID, the operand is used as a
group name.
.Pp
The user invoking
.Nm
must belong to the specified group and be the owner of the file,
or be the super-user.
.Sh FILES
.Bl -tag -width /etc/group -compact
.It Pa /etc/group
group ID file
.El
.Sh EXIT STATUS
.Ex -std
.Sh COMPATIBILITY
In previous versions of this system, symbolic links did not have groups.
.Pp
The
.Fl v
option is non-standard and its use in scripts is not recommended.
.Sh SEE ALSO
.Xr chown 2 ,
.Xr fts 3 ,
.Xr group 5 ,
.Xr passwd 5 ,
.Xr symlink 7 ,
.Xr chown 8
.Sh STANDARDS
The
.Nm
utility is expected to be
.St -p1003.2
compatible.
BSD 4.4 Lite usr.sbin Sources 1994-05-26 05:23:31 +00:00			`.\" Copyright (c) 1983, 1990, 1993, 1994`
			`.\" 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.`
			`.\" 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.`
			`.\"`
			`.\" @(#)chgrp.1 8.3 (Berkeley) 3/31/94`
$Id$ -> $FreeBSD$ 1999-08-28 01:35:59 +00:00			`.\" $FreeBSD$`
BSD 4.4 Lite usr.sbin Sources 1994-05-26 05:23:31 +00:00			`.\"`
Similar to chmod(1); make -v -v mean very verbose and show the old and new uid/gid. PR: 41341 Submitted by: Edward Brocklesby <nighthawk@unrealircd.com> Reviewed by: bde@ (an older version) 2003-04-25 08:57:55 +00:00			`.Dd April 25, 2003`
BSD 4.4 Lite usr.sbin Sources 1994-05-26 05:23:31 +00:00			`.Dt CHGRP 1`
mdoc(7) police: removed HISTORY info from the .Os call. 2001-07-10 15:12:08 +00:00			`.Os`
BSD 4.4 Lite usr.sbin Sources 1994-05-26 05:23:31 +00:00			`.Sh NAME`
			`.Nm chgrp`
			`.Nd change group`
			`.Sh SYNOPSIS`
mdoc(7) police: use the new features of the Nm macro. 2000-11-20 20:10:44 +00:00			`.Nm`
Somehow I didn't get all the "-v" code commited. Submitted by: Arindum Mukerji <rmukerji@execpc.com> Approved by: JKH Make the manpage more style(9) complient. 2000-03-08 16:31:42 +00:00			`.Op Fl fhv`
BSD 4.4 Lite usr.sbin Sources 1994-05-26 05:23:31 +00:00			`.Oo`
			`.Fl R`
			`.Op Fl H \| Fl L \| Fl P`
			`.Oc`
			`.Ar group`
add .Sh DIAGNOSTICS 1999-10-17 15:50:19 +00:00			`.Ar`
BSD 4.4 Lite usr.sbin Sources 1994-05-26 05:23:31 +00:00			`.Sh DESCRIPTION`
Cosmetic in man page. Sync usage() with man page. 1997-09-04 11:55:45 +00:00			`The`
			`.Nm`
			`utility sets the group ID of the file named by each`
BSD 4.4 Lite usr.sbin Sources 1994-05-26 05:23:31 +00:00			`.Ar file`
			`operand to the`
			`.Ar group`
			`ID specified by the group operand.`
			`.Pp`
add .Sh DIAGNOSTICS 1999-10-17 15:50:19 +00:00			`The following options are available:`
			`.Bl -tag -width indent`
BSD 4.4 Lite usr.sbin Sources 1994-05-26 05:23:31 +00:00			`.It Fl H`
			`If the`
			`.Fl R`
			`option is specified, symbolic links on the command line are followed.`
Cosmetic in man page. Sync usage() with man page. 1997-09-04 11:55:45 +00:00			`(Symbolic links encountered in the tree traversal are not followed).`
BSD 4.4 Lite usr.sbin Sources 1994-05-26 05:23:31 +00:00			`.It Fl L`
			`If the`
			`.Fl R`
			`option is specified, all symbolic links are followed.`
			`.It Fl P`
			`If the`
			`.Fl R`
			`option is specified, no symbolic links are followed.`
Make it clear that -P is the default. PR: docs/27629 2001-05-25 07:32:58 +00:00			`This is the default.`
BSD 4.4 Lite usr.sbin Sources 1994-05-26 05:23:31 +00:00			`.It Fl R`
			`Change the group ID for the file hierarchies rooted`
			`in the files instead of just the files themselves.`
			`.It Fl f`
Expand *n't contractions. 2005-02-13 22:25:33 +00:00			`The force option ignores errors, except for usage errors and does not`
BSD 4.4 Lite usr.sbin Sources 1994-05-26 05:23:31 +00:00			`query about strange modes (unless the user does not have proper permissions).`
Activate the -h flag which tells chown/chgrp to work on the symlink itself using lchown(). Most of the code was already here, the option was recognised but ignored for SYSV/POSIX.2(?) compatability. 1997-03-31 13:03:49 +00:00			`.It Fl h`
			`If the file is a symbolic link, the group ID of the link itself is changed`
			`rather than the file that is pointed to.`
Add "-v". 1999-11-27 19:25:08 +00:00			`.It Fl v`
			`Cause`
			`.Nm`
			`to be verbose, showing files as the group is modified.`
Similar to chmod(1); make -v -v mean very verbose and show the old and new uid/gid. PR: 41341 Submitted by: Edward Brocklesby <nighthawk@unrealircd.com> Reviewed by: bde@ (an older version) 2003-04-25 08:57:55 +00:00			`If the`
			`.Fl v`
Erase whitespace at EOL. Approved by: re (blanket) 2003-05-22 11:56:41 +00:00			`flag is specified more than once,`
Similar to chmod(1); make -v -v mean very verbose and show the old and new uid/gid. PR: 41341 Submitted by: Edward Brocklesby <nighthawk@unrealircd.com> Reviewed by: bde@ (an older version) 2003-04-25 08:57:55 +00:00			`.Nm`
			`will print the filename, followed by the old and new numeric group ID.`
BSD 4.4 Lite usr.sbin Sources 1994-05-26 05:23:31 +00:00			`.El`
			`.Pp`
			`The`
			`.Fl H ,`
			`.Fl L`
			`and`
			`.Fl P`
			`options are ignored unless the`
			`.Fl R`
			`option is specified.`
			`In addition, these options override each other and the`
			`command's actions are determined by the last one specified.`
			`.Pp`
			`The`
			`.Ar group`
			`operand can be either a group name from the group database,`
			`or a numeric group ID.`
			`If a group name is also a numeric group ID, the operand is used as a`
			`group name.`
			`.Pp`
			`The user invoking`
Cosmetic in man page. Sync usage() with man page. 1997-09-04 11:55:45 +00:00			`.Nm`
BSD 4.4 Lite usr.sbin Sources 1994-05-26 05:23:31 +00:00			`must belong to the specified group and be the owner of the file,`
			`or be the super-user.`
Sort sections. 2005-01-18 20:02:45 +00:00			`.Sh FILES`
			`.Bl -tag -width /etc/group -compact`
			`.It Pa /etc/group`
			`group ID file`
			`.El`
Added the EXIT STATUS section where appropriate. 2005-01-17 07:44:44 +00:00			`.Sh EXIT STATUS`
mdoc(7) police: utilize the new .Ex macro. 2001-08-15 09:09:47 +00:00			`.Ex -std`
BSD 4.4 Lite usr.sbin Sources 1994-05-26 05:23:31 +00:00			`.Sh COMPATIBILITY`
Activate the -h flag which tells chown/chgrp to work on the symlink itself using lchown(). Most of the code was already here, the option was recognised but ignored for SYSV/POSIX.2(?) compatability. 1997-03-31 13:03:49 +00:00			`In previous versions of this system, symbolic links did not have groups.`
Add "-v". 1999-11-27 19:25:08 +00:00			`.Pp`
			`The`
			`.Fl v`
			`option is non-standard and its use in scripts is not recommended.`
BSD 4.4 Lite usr.sbin Sources 1994-05-26 05:23:31 +00:00			`.Sh SEE ALSO`
			`.Xr chown 2 ,`
Sort cross references. 1997-01-20 00:03:00 +00:00			`.Xr fts 3 ,`
BSD 4.4 Lite usr.sbin Sources 1994-05-26 05:23:31 +00:00			`.Xr group 5 ,`
			`.Xr passwd 5 ,`
			`.Xr symlink 7 ,`
			`.Xr chown 8`
			`.Sh STANDARDS`
			`The`
Cosmetic in man page. Sync usage() with man page. 1997-09-04 11:55:45 +00:00			`.Nm`
			`utility is expected to be`
			`.St -p1003.2`
			`compatible.`