====== undoing changes ======

===== put your working copy back the way it was before your changes =====
  * reset all tracked/known files<code>
git reset --hard head
</code>
  * remove any untracked files/directories that aren't known (known like listed in a .gitignore file)<code>
git clean -df

you can also use this to see what would have been done
git clean -dn
</code>

===== External Links =====
 * [[http://learn.github.com/p/undoing.html|undoing]]