Ever have a time when you are happily editing a script in vim and you realize you made a mistake over the course of editing? Luckily, Vim supports back in time undos.
You want to go back 10 minutes?
You want to go forward in time by 5 seconds?
Sweet cuppin’ cakes that’s ballsy. Armed with this tool, you step forward and backwards in your undo/redo adventure, you make an accidental edit. Whoops. Now all the code you’ve edited in the 10 minutes that you rolled back with the handy-dandy <code>:earlier</code> command is gone…right?
Nope! Undo branching is where the real awesomeness of Vim shines. If you realize your mistake, you can find a list of undo branches like so:
Which will show you something like this:
number changes when saved 3 3 08:59:35 4 2 09:00:13
To jump to one of those branches, you can type:
:undo 3 or
I <3 Vim
(via Life Hacker)