X-Git-Url: https://git.octo.it/?p=rrdtool.git;a=blobdiff_plain;f=doc%2Frrddump.pod;h=52c68b699060969996885c9d3c8bfe4e1b903fb8;hp=f0b446a7e4cc99e3e8148c2e353ec25cfaa1937c;hb=907f9b68f3714bc0432d2ace43a2c93d81b4bffc;hpb=e4acaa789385e98fe979cd48cb0fb1ddc8570b91

diff --git a/doc/rrddump.pod b/doc/rrddump.pod
index f0b446a..52c68b6 100644
--- a/doc/rrddump.pod
+++ b/doc/rrddump.pod
@@ -4,16 +4,25 @@ rrddump - dump the contents of an RRD to XML format
 
 =head1 SYNOPSIS
 
-B<rrdtool> B<dump> I<filename.rrd> E<gt> I<filename.xml> 
+B<rrdtool> B<dump> I<filename.rrd>
+S<[B<--header>|B<-h> {xsd,dtd}]>
+S<[B<--daemon> I<address>]>
+S<E<gt> I<filename.xml>>
 
-=head1 DESCRIPTION
+or 
+
+B<rrdtool> B<dump> I<filename.rrd> I<filename.xml>
+S<[B<--header>|B<-h> {xsd,dtd}]>
+S<[B<--daemon> I<address>]>
 
-The B<dump> function prints the contents of an B<RRD> in human
-readable (?) XML format. This format can be read by rrdrestore.
-Together they allow you to transfer your files from one computer architecture
-to another as well to manipulate the contents of an B<RRD> file in a
-somewhat more convenient manner.
+=head1 DESCRIPTION
 
+The B<dump> function writes the contents of an B<RRD> in human
+readable (?) XML format to a file or to stdout. This format can
+be read by rrdrestore. Together they allow you to transfer your
+files from one computer architecture to another as well to
+manipulate the contents of an B<RRD> file in a somewhat more
+convenient manner.
 
 
 =over 8
@@ -22,6 +31,24 @@ somewhat more convenient manner.
 
 The name of the B<RRD> you want to dump.
 
+=item I<filename.xml>
+
+The (optional) filename that you want to write the XML output to.
+If not specified, the XML will be printed to stdout.
+
+=item B<--header>|B<-h> {xsd,dtd}
+
+Optionally rrdtool can add a xsd or dtd header to the dump output.
+
+=item B<--daemon> I<address>
+
+Address of the L<rrdcached> daemon. If specified, a C<flush> command is sent
+to the server before reading the RRD files. This allows B<rrdtool> to return
+fresh data even if the daemon is configured to cache values for a long time.
+For a list of accepted formats, see the B<-l> option in the L<rrdcached> manual.
+
+ rrdtool dump --daemon unix:/var/run/rrdcached.sock /var/lib/rrd/foo.rrd
+
 =back
 
 =head1 EXAMPLES
@@ -35,7 +62,7 @@ To transfer an RRD between architectures, follow these steps:
 On the same system where the RRD was created, use B<rrdtool> B<dump>
 to export the data to XML format.
 
-=item 2. 
+=item 2.
 
 Transfer the XML dump to the target system.
 
@@ -46,7 +73,22 @@ B<rrdrestore> for details.
 
 =back
 
+=head1 ENVIRONMENT VARIABLES
+
+The following environment variables may be used to change the behavior of
+C<rrdtoolE<nbsp>dump>:
+
+=over 4
+
+=item B<RRDCACHED_ADDRESS>
+
+If this environment variable is set it will have the same effect as specifying
+the C<--daemon> option on the command line. If both are present, the command
+line argument takes precedence.
+
+=back
+
 =head1 AUTHOR
 
-Tobias Oetiker E<lt>oetiker@ee.ethz.chE<gt>
+Tobias Oetiker E<lt>tobi@oetiker.chE<gt>