4.3BSD-Reno/src/usr.sbin/chown/chgrp.1

.\" Copyright (c) 1983, 1990 The Regents of the University of California.
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms are permitted provided
.\" that: (1) source distributions retain this entire copyright notice and
.\" comment, and (2) distributions including binaries display the following
.\" acknowledgement:  ``This product includes software developed by the
.\" University of California, Berkeley and its contributors'' in the
.\" documentation or other materials provided with the distribution and in
.\" all advertising materials mentioning features or use of this software.
.\" 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
.\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
.\"
.\"     @(#)chgrp.1	6.5 (Berkeley) 7/24/90
.\"
.Dd July 24, 1990
.Dt CHGRP 1
.Os BSD 4.2
.Sh NAME
.Nm chgrp
.Nd change group
.Sh SYNOPSIS
.Nm chgrp
.Op Fl Rf
.Ar group
.Ar files ...
.Sh DESCRIPTION
The chgrp 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
Options:
.Tw Ds
.Tp Fl R
Recursively change file group IDs.
For each
.Ar file
operand that names a directory, chgrp changes the
group of the directory and all files in the file
hierarchy below it.
When symbolic links are encountered, their group is changed,
but they are not traversed.
.Tp Fl f
The force option ignores errors, except for usage errors and doesn't
query about strange modes (unless user does not have proper permissions).
.Tp
.Pp
Operands:
.Tw Ds
.Tp Ar group
The
.Ar group
can be either a group name from the group database, or a numeric
group ID.
.Tp Ar file
A pathname of a file whose group ID is to be modified.
.Tp
.Pp
The user invoking
must belong
to the specified group and be the owner of the file, or be the super-user.
.Pp
The
.Nm chgrp
utility exits 0 on success, and >0 if an error occurs.
.Sh FILES
.Dw /etc/group
.Di L
.Dp Pa /etc/group
Group ID file
.Dp
.Sh SEE ALSO
.Xr chown 2 ,
.Xr chown 8 ,
.Xr group 5 ,
.Xr passwd 5
.Sh STANDARDS
The
.Nm chgrp
function is expected to be POSIX 1003.2 compatible.
This manual page is derived from the POSIX 1003.2 manual page.