Most Linux distributions will ship with Git already installed. To see which version is installed, open a terminal and type git --version. If Git is not installed, follow the instructions you find here
The latest version of OSX installs Git automatically. To see which version is installed, open a terminal and type git --version. If Git is not installed, follow the instructions you find here
To install Git and Git Bash in Windows, first download the file here, then install it. We recommend to use all the default settings for the installation, with the following two exceptions: In Adjusting Your PATH Environment, select Use Git from Git Bash Only. In the prompt Configuring the Line Ending Conversions, choose Checkout as-is, commit as-is. You can then access all Git functionalities from the application Git Bash.