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<?xml version="1.0" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>rrdlastupdate</title> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <link rev="made" href="mailto:root@localhost" /> </head> <body> <h1 id="NAME">NAME</h1> <p>rrdlastupdate - Return the most recent update to an RRD</p> <h1 id="SYNOPSIS">SYNOPSIS</h1> <p><b>rrdtool</b> <b>lastupdate</b> <i>filename</i> <span style="white-space: nowrap;">[<b>--daemon</b>|<b>-d</b> <i>address</i>]</span></p> <h1 id="DESCRIPTION">DESCRIPTION</h1> <p>The <b>lastupdate</b> function returns the UNIX timestamp and the value stored for each datum in the most recent update of an RRD.</p> <dl> <dt id="filename"><i>filename</i></dt> <dd> <p>The name of the <b>RRD</b> that contains the data.</p> </dd> <dt id="daemon--d-address"><b>--daemon</b>|<b>-d</b> <i>address</i></dt> <dd> <p>Address of the <a href="./rrdcached.html">rrdcached</a> daemon. If specified, a <code>flush</code> command is sent to the server before reading the RRD files. This allows <b>rrdtool</b> 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</b> option in the <a href="./rrdcached.html">rrdcached</a> manual.</p> <pre><code>rrdtool lastupdate --daemon unix:/var/run/rrdcached.sock /var/lib/rrd/foo.rrd</code></pre> </dd> </dl> <h1 id="ENVIRONMENT-VARIABLES">ENVIRONMENT VARIABLES</h1> <p>The following environment variables may be used to change the behavior of <code>rrdtool lastupdate</code>:</p> <dl> <dt id="RRDCACHED_ADDRESS"><b>RRDCACHED_ADDRESS</b></dt> <dd> <p>If this environment variable is set it will have the same effect as specifying the <code>--daemon</code> option on the command line. If both are present, the command line argument takes precedence.</p> </dd> </dl> <h1 id="AUTHOR">AUTHOR</h1> <p>Andy Riebs <andy.riebs@hp.com></p> </body> </html>