git

git config --global core.autocrlf input
git config --global core.eol lf\

Undo a commit and redo
http://stackoverflow.com/questions/927358/how-to-undo-last-commits-in-git

$ git commit -m "Something terribly misguided"              (1)
$ git reset HEAD~                                           (2)
<< edit files as necessary >>                               (3)
$ git add ...                                               (4)
$ git commit -c ORIG_HEAD

// Auto complete in bash
http://code-worrier.com/blog/autocomplete-git/