chown - change file owner and group
[OPTION]... OWNER[:[GROUP]] FILE...
[OPTION]... :GROUP FILE...
[OPTION]... --reference=RFILE FILE...
This manual page
documents the GNU version of
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,
performs the same function as
Change the owner and/or group of each FILE to OWNER and/or GROUP.
- -c, --changes
- like verbose but report only when a change is made
- affect the referent of each symbolic link, rather
than the symbolic link itself
- -h, --no-dereference
- affect symbolic links instead of any referenced file
(available 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.
- -f, --silent, --quiet
- suppress most error messages
- use RFILE's owner and group rather than
the specified OWNER:GROUP values
- -R, --recursive
- operate on files and directories recursively
- -v, --verbose
- output a diagnostic for every file processed
- 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
Written by David MacKenzie.
Report bugs to <email@example.com>.
Copyright © 2001 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 PURPOSE.