title: Creating a large file from Windows' commandline
body: <p>On Mac I can create a random 5GB file like this</p>
  
  <pre><code>dd if=dev/urandom of=~/random5gb bs=1000000 count=5000
  </code></pre>
  
  <p>Is there an equivalent command in Windows XP? I want it to be able to run in a '.bat' file that I'm creating.</p>