chown - change file owner and group
]... --reference=RFILE FILE
This manual page documents the GNU version of chown
the user and/or group ownership of each given file. If only an owner (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 owner is followed by a colon
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 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 and group are
given, but the owner is omitted, only the group of the files is changed; in
this case, chown
performs the same function as chgrp
. If only a
colon is given, or if the entire operand is empty, neither the owner nor the
group is changed.
Change the owner and/or group of each FILE to OWNER and/or GROUP. With
, change the owner and group of each FILE to those of RFILE.
- -c, --changes
- like verbose but report only when a change is made
- -f, --silent, --quiet
- suppress most error messages
- -v, --verbose
- output a diagnostic for every file processed
- affect the referent of each symbolic link (this is the default), rather
than the symbolic link itself
- -h, --no-dereference
- affect symbolic links 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 attribute
- do not treat '/' specially (the default)
- fail to operate recursively on '/'
- use RFILE's owner and group rather than specifying OWNER:GROUP values
- -R, --recursive
- operate on files and directories recursively
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
- if a command line argument is a symbolic link to a directory, traverse
- traverse every symbolic link to a directory encountered
- do not traverse any symbolic links (default)
- 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 ':' following a symbolic OWNER. OWNER and GROUP
may be numeric as well as symbolic.
- chown root /u
- Change the owner of /u to "root".
- chown root:staff /u
- Likewise, but also change its group to "staff".
- chown -hR root /u
- Change the owner of /u and subfiles to "root".
Written by David MacKenzie and Jim Meyering.
GNU coreutils online help: <http://www.gnu.org/software/coreutils/
Report chown translation bugs to <http://translationproject.org/team/
Copyright © 2016 Free Software Foundation, Inc. License GPLv3+: GNU GPL
version 3 or later <http://gnu.org/licenses/gpl.html
This is free software: you are free to change and redistribute it. There is NO
WARRANTY, to the extent permitted by law.
Full documentation at: <http://www.gnu.org/software/coreutils/chown
or available locally via: info '(coreutils) chown invocation'