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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | AUTHOR | REPORTING BUGS | COPYRIGHT | SEE ALSO | COLOPHON |
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CHOWN(1) User Commands CHOWN(1)
chown - change file owner and group
chown [OPTION]... [OWNER][:[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. 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 --reference, 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
--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)
--from=CURRENT_OWNER:CURRENT_GROUP
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
--no-preserve-root
do not treat '/' specially (the default)
--preserve-root
fail to operate recursively on '/'
--reference=RFILE
use RFILE's owner and group rather than specifying
OWNER:GROUP values. RFILE is always dereferenced.
-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 takes effect.
-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 (default)
--help display this help and exit
--version
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:
<https://www.gnu.org/software/coreutils/>
Report any translation bugs to
<https://translationproject.org/team/>
Copyright © 2023 Free Software Foundation, Inc. License GPLv3+:
GNU GPL version 3 or later <https://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.
chown(2)
Full documentation <https://www.gnu.org/software/coreutils/chown>
or available locally via: info '(coreutils) chown invocation'
This page is part of the coreutils (basic file, shell and text
manipulation utilities) project. Information about the project
can be found at ⟨http://www.gnu.org/software/coreutils/⟩. If you
have a bug report for this manual page, see
⟨http://www.gnu.org/software/coreutils/⟩. This page was obtained
from the tarball coreutils-9.4.tar.xz fetched from
⟨http://ftp.gnu.org/gnu/coreutils/⟩ on 2023-12-22. If you
discover any rendering problems in this HTML version of the page,
or you believe there is a better or more up-to-date source for
the page, or you have corrections or improvements to the
information in this COLOPHON (which is not part of the original
manual page), send a mail to man-pages@man7.org
GNU coreutils 9.4 August 2023 CHOWN(1)
Pages that refer to this page: chgrp(1), chown(2), fd(4), hd(4), initrd(4), lp(4), mem(4), null(4), ram(4), tty(4), ttyS(4), symlink(7), sm-notify(8), start-stop-daemon(8), statd(8)
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HTML rendering created 2023-12-22 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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