Git is a version control system that lets you manage and keep track of your source code history.
Command Prompt and type
git --version to see if you have Git installed on your system.
Having version control of your code, even if you are the only one working on it, will give a layer of security and history of the theme/plugin that you are working on.
We will install Git locally with all the default options (see the screenshot gallery below).
If you don’t have Git installed, go ahead and download it from their site.