ad34cace15
chmod, chflags, chgrp, chmod and chown now affect symlinks in -R mode as defined in symlink(7); previously symlinks were silently ignored. Differential Revision: https://reviews.freebsd.org/D2316 Reviewed by: jilles MFC after: 1 month Relnotes: yes Sponsored by: Multiplay
172 lines
4.6 KiB
Groff
172 lines
4.6 KiB
Groff
.\" Copyright (c) 1990, 1991, 1993, 1994
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" 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.
|
|
.\"
|
|
.\" @(#)chown.8 8.3 (Berkeley) 3/31/94
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd April 20, 2015
|
|
.Dt CHOWN 8
|
|
.Os
|
|
.Sh NAME
|
|
.Nm chown
|
|
.Nd change file owner and group
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Op Fl fhvx
|
|
.Oo
|
|
.Fl R
|
|
.Op Fl H | Fl L | Fl P
|
|
.Oc
|
|
.Ar owner Ns Op : Ns Ar group
|
|
.Ar
|
|
.Nm
|
|
.Op Fl fhvx
|
|
.Oo
|
|
.Fl R
|
|
.Op Fl H | Fl L | Fl P
|
|
.Oc
|
|
.No : Ns Ar group
|
|
.Ar
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
utility changes the user ID and/or the group ID of the specified files.
|
|
Symbolic links named by arguments are silently left unchanged unless
|
|
.Fl h
|
|
is used.
|
|
.Pp
|
|
The options are as follows:
|
|
.Bl -tag -width Ds
|
|
.It Fl H
|
|
If the
|
|
.Fl R
|
|
option is specified, symbolic links on the command line are followed
|
|
and hence unaffected by the command.
|
|
(Symbolic links encountered during 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 user ID and/or the group ID of the file hierarchies rooted
|
|
in the files, instead of just the files themselves.
|
|
Beware of unintentionally matching the
|
|
.Dq Pa ".."
|
|
hard link to the parent directory when using wildcards like
|
|
.Dq Li ".*" .
|
|
.It Fl f
|
|
Do not report any failure to change file owner or group, nor modify
|
|
the exit status to reflect such failures.
|
|
.It Fl h
|
|
If the file is a symbolic link, change the user ID and/or the
|
|
group ID of the link itself.
|
|
.It Fl v
|
|
Cause
|
|
.Nm
|
|
to be verbose, showing files as the owner is modified.
|
|
If the
|
|
.Fl v
|
|
flag is specified more than once,
|
|
.Nm
|
|
will print the filename, followed by the old and new numeric user/group ID.
|
|
.It Fl x
|
|
File system mount points are not traversed.
|
|
.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 owner
|
|
and
|
|
.Ar group
|
|
operands are both optional, however, one must be specified.
|
|
If the
|
|
.Ar group
|
|
operand is specified, it must be preceded by a colon (``:'') character.
|
|
.Pp
|
|
The
|
|
.Ar owner
|
|
may be either a numeric user ID or a user name.
|
|
If a user name is also a numeric user ID, the operand is used as a
|
|
user name.
|
|
The
|
|
.Ar group
|
|
may be either a numeric group ID or a group name.
|
|
If a group name is also a numeric group ID, the operand is used as a
|
|
group name.
|
|
.Pp
|
|
The ownership of a file may only be altered by a super-user for
|
|
obvious security reasons.
|
|
.Sh EXIT STATUS
|
|
.Ex -std
|
|
.Sh COMPATIBILITY
|
|
Previous versions of the
|
|
.Nm
|
|
utility used the dot (``.'') character to distinguish the group name.
|
|
This has been changed to be a colon (``:'') character so that user and
|
|
group names may contain the dot character.
|
|
.Pp
|
|
On previous versions of this system, symbolic links did not have
|
|
owners.
|
|
.Pp
|
|
The
|
|
.Fl v
|
|
and
|
|
.Fl x
|
|
options are non-standard and their use in scripts is not recommended.
|
|
.Sh SEE ALSO
|
|
.Xr chgrp 1 ,
|
|
.Xr find 1 ,
|
|
.Xr chown 2 ,
|
|
.Xr fts 3 ,
|
|
.Xr symlink 7
|
|
.Sh STANDARDS
|
|
The
|
|
.Nm
|
|
utility is expected to be
|
|
.St -p1003.2
|
|
compliant.
|
|
.Sh HISTORY
|
|
A
|
|
.Nm
|
|
utility appeared in
|
|
.At v1 .
|