Git and GitHub are essential tools in modern software development, enabling version control and collaboration among developers.

Git

Git is a distributed version control system (DVCS) that helps track changes in source code during software development.

Repository (Repo): A storage location for a project's files and revision history.
Clone: Copying a repository to create a local copy on your machine.
Commit: A snapshot of changes made to the code.
Branch: A separate line of development that allows changes to be made without affecting the main codebase.
Merge: Combining changes from one branch into another.
Pull: Fetching changes from a remote repository to update the local copy.
Push: Uploading local changes to a remote repository.

Git Commands:

Configuring user information used across all local repositories

Define the author name to be used for all commits by the current user.
```
git config --global user.name <Username>
```
Define the author email to be used for all commits by the current user.
```
git config --global user.email <User_email>
```

Configuring user information, initializing and cloning repositories