title: How to append a date in batch files
body: <p>I have the following line in a batch file (that runs on an old <a href="http://en.wikipedia.org/wiki/Windows_2000" rel="noreferrer">Windows 2000</a> box):</p>
  
  <pre><code>7z a QuickBackup.zip *.backup
  </code></pre>
  
  <p>How do I append the date to the <code>QuickBackup.zip</code> file. So if I ran the batch file today, ideally, the file would be <code>QuickBackup20090514.zip</code>.</p>
  
  <p>Is there a way to do this?</p>