Git immersion - a simple git tutorial

I am surprised it didn't cover reverting back a file to old version:<p>1. Check the diff: git diff &#60;commit hash&#62; &#60;file&#62;<p>2. Revert back: git reset &#60;commit hash&#62; &#60;file&#62;

This was pretty popular on HN last year: <a href="http://news.ycombinator.com/item?id=2104872" rel="nofollow">http://news.ycombinator.com/item?id=2104872</a>

I found this on github a while ago: <a href="http://rogerdudler.github.com/git-guide/" rel="nofollow">http://rogerdudler.github.com/git-guide/</a>