Change group ownership.
chgrp [OPTION]... GROUP FILE...
chgrp [OPTION]... --reference=RFILE FILE...
Change the group of each FILE to GROUP. With --reference, change the group of each FILE to that 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 referenced file (useful only on systems that can change the ownership of a symlink)
--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 group rather than the specifying GROUP value
-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 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
chgrp staff /u
Change the group of /u to "staff".
chgrp -hR staff /u
Change the group of /u and subfiles to "staff".
Written by David MacKenzie and Jim Meyering. Report bugs to firstname.lastname@example.org.
Copyright © 2006 Free Software Foundation, Inc. This is free software. You may redistribute copies of it under the terms of the GNU General Public License. There is NO WARRANTY, to the extent permitted by law.