title: PowerShell Script to Get a Directory Total Size
body: <p>I need to get the size of a directory, recursively. I have to do this every month so I want to make a <a href="http://en.wikipedia.org/wiki/Windows_PowerShell" rel="noreferrer">PowerShell</a> script to do it.</p>
  
  <p>How can I do it?</p>