title: Replace all occurrences of a string within a file
body: <p>I have a string <code>test.cgi@action=&lt;action-name&gt;</code></p>
  
  <p><code>&lt;action-name&gt;</code> can be any string</p>
  
  <p>I would like to replace the above string with <code>&lt;action-name&gt;.html</code> for all the occurrences within a file.</p>
  
  <p>Can any one please let me know how I can proceed with this using a Perl script?</p>
  
  <p>ps: I didn't get any response when i posted as a comment to existing message. So, I'm posting as a new message.</p>