redhat man page for groups

GROUPS(1)								FSF								 GROUPS(1)

NAME
       groups - print the groups a user is in

SYNOPSIS
       groups [OPTION]... [USERNAME]...

DESCRIPTION
       --help display this help and exit

       --version
	      output version information and exit

       Same as id -Gn.	If no USERNAME, use current process.

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

SEE ALSO
       The  full documentation for groups is maintained as a Texinfo manual.  If the info and groups programs are properly installed at your site,
       the command

	      info groups

       should give you access to the complete manual.

GNU coreutils 4.5.3						   February 2003							 GROUPS(1)