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chown

(1)

change file owner and group

User commands15 optionscoreutils 9.7-3
chown [OPTION]... [OWNER][:[GROUP]] FILE... chown [OPTION]... --reference=RFILE FILE...

Options

15
-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

--dereference

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)

--fromCURRENT_OWNER

change the ownership 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

--no-preserve-root

do not treat '/' specially (the default)

--preserve-root

fail to operate recursively on '/'

--referenceRFILE

use RFILE's ownership rather than specifying values. RFILE is always dereferenced if a symbolic link.

-R--recursive

operate on files and directories recursively

-H

if a command line argument is a symbolic link to a directory, traverse it

-L

traverse every symbolic link to a directory encountered

-P

do not traverse any symbolic links

--help

display this help and exit

--version

output version information and exit

DESCRIPTION

This manual page documents the GNU version of chown. chown changes 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.

EXAMPLES

Change the owner of /u to "root".
Likewise, but also change its group to "staff".
Change the owner of /u and subfiles to "root".

AUTHOR

Written by David MacKenzie and Jim Meyering.

REPORTING BUGS

GNU coreutils online help: https://www.gnu.org/software/coreutils/
Report any translation bugs to https://translationproject.org/team/

See also

chown(2)