title: How to undo rm -rf?
body: <p>How we I undo the <code>rm -rf</code> command?</p>
  <p>For example, I have an <code>Application</code> folder and I removed it with:</p>
  <pre><code>rm -rf Application
  </code></pre>
  <p>But it was my mistake and want to recover that <code>Application</code> folder, but it's not in Trash folder.</p>
  <p>What should I do now? Is there any command to undo <code>rm -rf</code>?</p>