title: How to reverse order of fields using AWK?
body: <p>I have a file with the following layout:</p>
  
  <pre><code>123,01-08-2006
  124,01-09-2007
  125,01-10-2009
  126,01-12-2010
  </code></pre>
  
  <p>How can I convert it into the following by using AWK?</p>
  
  <pre><code>123,2006-08-01
  124,2007-09-01
  125,2009-10-01
  126,2009-12-01
  </code></pre>