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<title>rrdlastupdate</title>
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<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> <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-address"><b>--daemon</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>
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<h1 id="AUTHOR">AUTHOR</h1>
<p>Andy Riebs <andy.riebs@hp.com></p>
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