Git is a version control system for tracking changes to code. Initialize a folder as a git repository to save snapshots of your work, branch to experiment safely, and synchronize with teammates via remotes.

Every change is recorded as a commit, a snapshot of your project at a point in time. You can view history, revert to old commits, and understand who changed what and why. Git is decentralized—each person gets a full copy of the repository's history, so you work offline and sync with others when ready.

$ git init                    # create a repository
$ git add .                   # stage changes
$ git commit -m "message"     # create a commit
$ git push origin main        # push to remote

On a multi-person project, branching lets each developer work in isolation without conflicts. Create a branch, make changes, and merge back when ready.

1. Repositories
2. Commits
3. Staging
4. Branches
5. Merging
6. Rebasing
7. Remotes
8. Pushing and pulling
9. Undoing changes
10. History and viewing commits
11. Tags
12. Conflicts and conflict resolution
13. Stashing
14. Cherry-pick
15. Hooks
16. Workflows