bsd man page for chgrp

CHGRP(1)						      General Commands Manual							  CHGRP(1)

NAME
       chgrp - change group

SYNOPSIS
       chgrp [ -f -R ] group file ...

DESCRIPTION
       Chgrp changes the group-ID of the files to group.  The group may be either a decimal GID or a group name found in the group-ID file.

       The user invoking chgrp must belong to the specified group and be the owner of the file, or be the super-user.

       No errors are reported when the -f (force) option is given.

       When  the  -R  option is given, chgrp recursively descends its directory arguments setting the specified group-ID.  When symbolic links are
       encountered, their group is changed, but they are not traversed.

FILES
       /etc/group

SEE ALSO
       chown(2), passwd(5), group(5)

4.2 Berkeley Distribution					   May 22, 1986 							  CHGRP(1)