title: regular expression for matching number
body: <p>I have file call phonenum.txt which contain a list of phone numbers that have been filtered from a file through procmail recipe :</p>
  
  <pre><code>60123456098,60135673434,60149023459,60123456334
  </code></pre>
  
  <p>Based on this file there are two conditions that need to be fulfilled in order to get their output.</p>
  
  <ol>
  <li>The output must be differentiate by number 60(its the country code,so its the only constant that I can use between all the numbers) and the "," symbols in front of these number.Ex: <strong>60135673434</strong>..</li>
  <li>What if the number 60 is in the middle of the phone number? For example: <strong>60123456098</strong> How can I get the output for the whole number? </li>
  </ol>
  
  <p>Is there anyway that I can get the phone number by using match regular expression in awk or sed?</p>