=over 4
-=item B<-l>
+=item B<-C> I<E<lt>config-fileE<gt>>
-Start in local mode. This is the default. No data will be sent or read to/from
-the network. Information will be read and written by the same process. See
-L<"MODES">.
-
-=item B<-c>
-
-Start in client (transmitter) mode. Data will be sent to the multicast group.
-See L<"MODES">.
-
-=item B<-s>
-
-Start in server (receiver) mode. Data sent to the multicast group will be read
-and stored in RRD files. See L<"MODES">.
+Specify an alternative config file. This is the place to go when you wish to
+change B<collectd>'s behavior. The path may be relative to the current working
+directory.
=item B<-f>
descriptors, detach from the session nor write a pid file. This is mainly
thought for 'supervisioning' init replacements such as I<runit>.
-=item B<-D> I<E<lt>directoryE<gt>>
-
-Sets the directory collectd should work in. All F<.rrd>-files are created in
-this directory. Per default this is F</var/lib/collectd/>.
-
-=item B<-M> I<E<lt>directoryE<gt>>
-
-Sets the directory collectd should look for plugins in. Per default this is
-F</usr/lib/collectd>.
-
-=item B<-P> I<E<lt>fileE<gt>>
-
-Sets the PID-file.
-
=item B<-h>
Output usage information and exit.
-=item B<-p> I<E<lt>hostE<gt>>
-
-Sets the host to ping periodically. This option may be given more than once to
-ping multiple hosts. If this option is not given at least once no host will be
-pinged.
-
=back
=head1 RRD FILES