title: How to match numeric with grep
body: <p>I have a line in my log file that has the version number of the build in question.
  it will always be 1.43.93.* e.g.</p>
  
  <pre><code>&lt;some text &gt; Version=1.43.98.7488, &lt;more text&gt;
  </code></pre>
  
  <p>I just want to extact the version number.</p>
  
  <p>None of the following return anything:</p>
  
  <pre><code>grep -G -m 1 1.43.98\.\d+ mylog.txt
  egrep -m 1 "1.43.98\.\d+" mylog.txt
  </code></pre>
  
  <p>The build number occurs in mutliple places in the logfile (which is why I'm passing the -m flag with a value of 1), but obviously I'm only interested in the first match.</p>
  
  <p>Any tips will be appreciated. I'm using Cygwin (GNU grep 2.6.3).</p>
  
  <p>Thanks</p>