CHGRP(1)             User Commands                  CHGRP(1) NAME        chgrp - change group ownership SYNOPSIS        chgrp [OPTION]... GROUP FILE...        chgrp [OPTION]... --reference=RFILE FILE... DESCRIPTION        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 (this is the default),           rather than the symbolic link itself        -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 specifying a 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 EXAMPLES        chgrp staff /u           Change the group of /u to "staff".        chgrp -hR staff /u           Change the group of /u and subfiles to "staff". AUTHOR        Written by David MacKenzie and Jim Meyering. REPORTING BUGS        Report chgrp bugs to bug-coreutils@gnu.org        GNU coreutils home page: <http://www.gnu.org/software/coreutils/>        General help using GNU software: <http://www.gnu.org/gethelp/>        Report chgrp translation bugs to <http://translationproject.org/team/> COPYRIGHT        Copyright  ©  2010  Free Software Foundation, Inc.  License GPLv3+: GNU        GPL version 3 or later <http://gnu.org/licenses/gpl.html>.        This is free software: you are free  to    change    and  redistribute  it.        There is NO WARRANTY, to the extent permitted by law. SEE ALSO        The full documentation for chgrp is maintained as a Texinfo manual.  If        the info and chgrp programs are properly installed at  your  site,  the        command           info coreutils 'chgrp invocation'        should give you access to the complete manual. GNU coreutils 8.4           June 2012                  CHGRP(1)