CHOWN(1) User Commands CHOWN(1)
chown - change file owner and group
chown [OPTION]... OWNER[:[GROUP]] FILE...
chown [OPTION]... :GROUP FILE...
chown [OPTION]... --reference=RFILE FILE...
This manual page documents the GNU version of chown. chown changes the
user and/or group ownership of each given file, according to its first
non-option argument, which is interpreted as follows. If only a user
name (or numeric user ID) is given, that user is made the owner of each
given file, and the files’ group is not changed. If the user name is
followed by a colon or dot and a group name (or numeric group ID), with
no spaces between them, the group ownership of the files is changed as
well. If a colon or dot but no group name follows the user name, that
user is made the owner of the files and the group of the files is
changed to that user’s login group. If the colon or dot and group are
given, but the user name is omitted, only the group of the files is
changed; in this case, chown performs the same function as chgrp.
Change the owner and/or group of each FILE to OWNER and/or GROUP. With
--reference, change the owner and group of each FILE to those of RFILE.
like verbose but report only when a change is made
affect the referent of each symbolic link, rather than the sym-
bolic link itself (this is the default)
affect each symbolic link instead of any referenced file (useful
only on systems that can change the ownership of a symlink)
change the owner and/or group of each file only if its current
owner and/or group match those specified here. Either may be
omitted, in which case a match is not required for the omitted
--no-preserve-root do not treat ‘/’ specially (the default)
fail to operate recursively on ‘/’
-f, --silent, --quiet
suppress most error messages
use RFILE’s owner and group rather than the specifying
operate on files and directories recursively
output a diagnostic for every file processed
The following options modify how a hierarchy is traversed when the -R
option is also specified. If more than one is specified, only the
final one takes effect.
-H if a command line argument is a symbolic link to a directory,
-L traverse every symbolic link to a directory encountered
-P do not traverse any symbolic links (default)
--help display this help and exit
output version information and exit
Owner is unchanged if missing. Group is unchanged if missing, but
changed to login group if implied by a ‘:’. OWNER and GROUP may be
numeric as well as symbolic.
Written by David MacKenzie and Jim Meyering.
Report bugs to <email@example.com>.
Copyright © 2004 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is
NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
The full documentation for chown is maintained as a Texinfo manual. If
the info and chown programs are properly installed at your site, the
info coreutils chown
should give you access to the complete manual.
chown (coreutils) 5.2.1 July 2005 CHOWN(1)
Man(1) output converted with