How do you NOT add untracked files in git?
<p>I was messing around and now I don't want to commit these files. How do I remove these from being committed?</p>

<pre><code>git status 
On branch sign-up
Untracked files:
  (use "git add &lt;file&gt;..." to include in what will be committed)

    HEAD
    description
    hooks/
    info/
    sample_app/

nothing added to commit but untracked files present (use "git add" to track)
</code></pre>