RRDtool 1.4.5  Copyright 1997-2013 by Tobias Oetiker <tobi@oetiker.ch>
               Compiled Jul  8 2014 18:14:11

Usage: rrdtool [options] command command_options
Valid commands: create, update, updatev, graph, graphv,  dump, restore,
		last, lastupdate, first, info, fetch, tune,
		resize, xport, flushcached

RRDtool is distributed under the Terms of the GNU General
Public License Version 2. (www.gnu.org/copyleft/gpl.html)

For more information read the RRD manpages