git init is a command in Git that creates a new Git repository. It sets up all the necessary files and directories that Git needs to begin tracking changes to your project. This command creates a new subdirectory named .git that contains all of the necessary repository files.

Here is an example:

Let’s assume you have a folder on your desktop named “project”. Open a terminal/command prompt in that directory and enter git init. This will create a new subdirectory named .git in your “project” folder.

$ cd ~/Desktop/project
$ git init
Initialized empty Git repository in /Users/USER/Desktop/project/.git/

This command only needs to be run once per repository. After running git init, you can start tracking changes to your project using Git commands like git add and git commit.