Git needs to know who you are. This is because in Git, every modification you make in a repository has to be signed with the name and email of the author. So, before doing anything else, we have to tell Git this information.

Type these two commands:

Using the git config command, we set up two configuration variables-user.name and user.email. Starting from now, Git will use them to sign your commits in all your repositories. Do not worry about it for now; in the next few chapters, we will explore the Git configuration system in more detail.