What is Git and what are its basic operations?

Git is a distributed version control system tracking changes in source code. Basic operations: git init (create repo), git clone (copy repo), git add (stage changes), git commit (save changes), git push (upload to remote), git pull (download changes), git branch (create branch), git merge (combine branches), git checkout/switch (change branches). Git enables: collaboration, history tracking, branching for features, reverting changes. GitHub/GitLab provide remote hosting.