man/cat1/chown.1.txt
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CHOWN(1) User Commands CHOWN(1)
NAME chown - change file owner and group SYNOPSIS chown [OPTION]... [OWNER][:[GROUP]] FILE... chown [OPTION]... --reference=RFILE FILE... DESCRIPTION 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 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, chown performs the same function as chgrp. OPTIONS 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 --dereference affect the referent of each symbolic link, rather than the symbolic link itself (this is the default) -h, --no-dereference affect each symbolic link instead of any refer- enced 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 `/' -f, --silent, --quiet suppress most error messages --reference=RFILE use RFILE's owner and group rather than the spec- ifying OWNER:GROUP values -R, --recursive operate on files and directories recursively -v, --verbose output a diagnostic for every file processed The following options modify how a hierarchy is tra- versed 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. AUTHOR Written by David MacKenzie and Jim Meyering. REPORTING BUGS Report bugs to <bug-coreutils@gnu.org>. COPYRIGHT Copyright (C) 2004 Free Software Foundation, Inc. This is free software; see the source for copying condi- tions. There is NO warranty; not even for MERCHANTABIL- ITY or FITNESS FOR A PARTICULAR PURPOSE. SEE ALSO The full documentation for chown is maintained as a Tex- info manual. If the info and chown programs are prop- erly installed at your site, the command info chown should give you access to the complete manual. chown 5.3.0 November 2004 CHOWN(1) |