CHOWN(1) FSF 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 inter-
preted 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 per-
forms the same function as chgrp.
Change the owner and/or group of each FILE to OWNER and/or GROUP.
like verbose but report only when a change is made
affect the referent of each symbolic link, rather than the symbolic link itself
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
operate on files and directories recursively
output a diagnostic for every file processed
--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.
Report bugs to <firstname.lastname@example.org>.
Copyright (C) 2002 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.
The full documentation for chown is maintained as a Texinfo manual. If the info and chown
programs are properly installed at your site, the command
should give you access to the complete manual.
chown (coreutils) 4.5.3 February 2003 CHOWN(1)