ok, this is one of the most basic commands you use, but as a beginner, if you dont use git that much, you can forget it, thats why i have created my notes here to help you. the command is very simple:

git init Repository_name

not that by default, when you create a brand new repository, git does not create a new commit also, you will have to create the initial commit

to get more information about the newly created repository, run the status command:
git status