For people who are using MAC and have not already figured it out, git commands autocomplete seem to not work on MAC OS.
Following are the steps to add git bash completion
Install Git and bash-completion:
(Note: If this install fails with a 404 error, and you already have git installed, just remove the git part of this brew install)
Add bash-completion to your ~/.bash_profile:
Restart your terminal or do
Go to any directory with git repo and give it a try,