CHGRP(1) User Commands CHGRP(1)

chgrp - 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.

like verbose but report only when a change is made
suppress most error messages
output a diagnostic for every file processed
affect the referent of each symbolic link (this is the default), rather than the symbolic link itself
affect symbolic links instead of any referenced file (useful only on systems that can change the ownership of a symlink)
change the ownership 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
do not treat '/' specially (the default)
fail to operate recursively on '/'
use RFILE's ownership rather than specifying values RFILE is always dereferenced if a symbolic link.
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. '-P' is the default.

if a command line argument is a symbolic link to a directory, traverse it
traverse every symbolic link to a directory encountered
do not traverse any symbolic links
display this help and exit
output version information and exit

Change the group of /u to "staff".
Change the group of /u and subfiles to "staff".

Written by David MacKenzie and Jim Meyering.

GNU coreutils online help:
Report any translation bugs to

Copyright © 2024 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.

chown(1), chown(2)

Full documentation
or available locally via: info '(coreutils) chgrp invocation'

March 2024 GNU coreutils 9.5