NAME
    chgrp - change group ownership

SYNOPSIS
    chgrp [OPTION]... GROUP FILE...
    chgrp [OPTION]... --reference=RFILE FILE...

DESCRIPTION
    Change the group membership of each FILE to GROUP.

    -c, --changes
    like verbose but report only when a change is made

    --dereference
    affect the referent of each symbolic link, rather than the sym-
    bolic link itself

    -h, --no-dereference
    affect symbolic links instead of any referenced file (available
    only on systems that can change the ownership of a symlink)

    -f, --silent, --quiet
    suppress most error messages

    --reference=RFILE
    use RFILE's group rather than the specified GROUP value

    -R, --recursive
    operate on files and directories recursively

    -v, --verbose
    output a diagnostic for every file processed

    --help display this help and exit

    --version
    output version information and exit

AUTHOR
    Written by David MacKenzie.

REPORTING BUGS
    Report bugs to <bug-coreutils@gnu.org>.

COPYRIGHT
    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.

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 chgrp

    should give you access to the complete manual.