You can safely skip this section if you're comfortable with Git.
Git lets you track a history of changes to files, and helps ease the pain of multiple people working on the same set of files. Git is a distributed version control system, meaning every developer owns a mirrored copy of the code base on their system.
If you're on a Debian-flavored Linux distribution, you can install Git by running the following:
$ sudo apt-get install git
If you're on a different system, you can download the binaries or find more instructions from git-scm.com/download. You'll want to configure your username and your email address:
$ git config --global user.name 'Your Name'$ git config --global user.email ...