Git Mastery: From Zero to Expert
A comprehensive 22-module course covering Git from first principles to advanced team workflows, with hands-on labs, ASCII diagrams, and self-assessment quizzes.
A comprehensive 22-module course covering Git from first principles to advanced team workflows. Each module includes concept explanations with ASCII diagrams, a command reference table, hands-on labs with guided exercises, common pitfalls, pro tips, and a 10-question self-assessment quiz.
Course Overview
| Total Modules | 22 |
| Estimated Total Time | 45–60 hours |
| Prerequisites | Basic command-line familiarity |
| Format | Self-paced, hands-on labs in each module |
| Skill Level | Beginner to Advanced |
What You'll Learn
- Foundations — Version control concepts, Git installation, internals, and the commit graph
- Core Workflow — Staging, committing, branching, merging, and working with remotes
- History Rewriting — Rebase, interactive rebase, reset, revert, and advanced staging
- History Investigation — Cherry-pick, bisect, blame, diff, log, and grep
- Automation & Standards — Git hooks, conventional commits, and semantic versioning
- Strategy — Branching strategies and advanced remote operations
- Resilience & Performance — Recovering from complex situations and optimizing large repos
- Collaboration — PR workflows, code review, commit hygiene, signing, and team setup
Learning Path Recommendations
Path A: "I Need Git Yesterday" (8–10 hours)
For developers who need to be productive with Git as fast as possible.
| Priority | Modules | Time |
|---|---|---|
| Day 1 | 1, 2, 5 | 6 hrs |
| Day 2 | 6, 7, 8 | 7 hrs |
| As needed | 11, 20 | 4.5 hrs |
Path B: Complete Beginner to Intermediate (20–25 hours)
For developers working through the course sequentially at a comfortable pace.
| Week | Modules | Time |
|---|---|---|
| Week 1 | 1–4 (Foundations) | 8 hrs |
| Week 2 | 5–8 (Core Workflow) | 9.5 hrs |
| Week 3 | 9–12 (History Rewriting) | 8.5 hrs |
Path C: Intermediate to Advanced (15–20 hours)
For developers who already know basics and want to level up.
| Focus | Modules | Time |
|---|---|---|
| History mastery | 13, 14, 15 | 7.5 hrs |
| Automation | 16, 17 | 4.5 hrs |
| Strategy & scale | 18, 19, 21 | 8 hrs |
Path D: Team Lead / DevOps (10–12 hours)
For tech leads setting up team workflows and infrastructure.
| Focus | Modules | Time |
|---|---|---|
| Strategy | 18 | 2.5 hrs |
| Automation & standards | 16, 17 | 4.5 hrs |
| Performance | 21 | 2.5 hrs |
| Collaboration | 22 | 3 hrs |
How to Use This Course
- Read the concept explanation — understand the why before the how
- Study the ASCII diagrams — visualize how Git operations transform the commit graph
- Refer to the command reference table — a quick lookup for syntax and flags
- Complete the hands-on lab — type every command; don't just read
- Attempt the challenge — apply what you learned to a less-guided scenario
- Review the pitfalls table — learn from common mistakes
- Take the quiz — check your understanding before moving on
- Revisit the pro tips — practical wisdom from experienced Git users
Chapters
Understanding Version Control & Git
Why version control exists, centralized vs distributed VCS, Git's history, design philosophy, and the snapshots vs diffs mental model.
Installation, Configuration & Setup
Installing Git on Windows, macOS, and Linux, configuring git config, SSH keys, editor, aliases, and creating your first repository.
Git Internals — The Object Model
Explore blobs, trees, commits, SHA-1 hashing, content-addressable storage, and the anatomy of the .git directory.
The Commit Graph & Branching Model
Understand the Directed Acyclic Graph (DAG), how branches are pointers, HEAD, detached HEAD, and how commits link together.
The Basic Git Workflow
Master add, commit, status, diff, .gitignore, the three trees (working directory, index, HEAD), and undoing changes.
Branching & Switching
Creating and deleting branches, git switch vs git checkout, branch naming conventions, and visualizing branches.
Merging
Fast-forward merge, three-way merge, merge conflicts, conflict resolution tools, --no-ff, and merge strategies.
Working with Remotes
Clone, fetch, pull, push, remote tracking branches, origin, upstream configuration, and pull request basics.
Rebase Fundamentals
Rebase vs merge, git rebase, when to rebase, the golden rule of never rebasing shared history, and handling rebase conflicts.
Interactive Rebase
Master rebase -i with pick, reword, edit, squash, fixup, drop, reorder, plus --autosquash, --autostash, and --exec.
git reset & git revert
Understand reset --soft, --mixed, --hard, revert for shared history, the reset vs revert decision framework, and ORIG_HEAD.
The Staging Area Mastered
git add -p patch mode, git stash management, git restore, partial staging, and advanced staging workflows.
Cherry-Pick & Other History Tools
Cherry-pick, reflog, git bisect for automated bug hunting, git blame, pickaxe search, git shortlog, and .mailmap.
Git Diff Mastery
Unified diff format, diff variants, two-dot vs three-dot ranges, output formats, --word-diff, graph traversal, and external diff tools.
Git Log & History Exploration
Log formatting, filtering by author/date/grep, path filtering, range notation, merge navigation, and git grep.
Git Hooks & Automation
Client-side and server-side hooks, commit lifecycle hooks, sharing hooks with core.hooksPath, Husky, lint-staged, and commitlint.
Conventional Commits & Semantic Versioning
SemVer, Conventional Commits specification, commit types, Git tags, automated changelogs, and release tooling.
Branching Strategies
Git Flow, GitHub Flow, GitLab Flow, trunk-based development, strategy comparison, and branch naming conventions.
Advanced Remote Operations
Multiple remotes, fork workflow, --force-with-lease, shallow clones, partial clones, sparse checkout, submodules, subtrees, and Git LFS.
Resolving Complex Situations
Recovering from bad merges, undoing pushed commits, reflog recovery, detached HEAD, diverged branches, git worktree, and git fsck.
Performance & Large Repos
git gc, git maintenance, commit-graph files, fsmonitor, sparse checkout, partial clone filters, git rerere, and scaling strategies.
Git Workflows & Collaboration Best Practices
Atomic commits, commit message standards, PR workflows, stacked PRs, CODEOWNERS, monorepo tooling, signed commits, and branch protection.
Git Command Cheat Sheet
A comprehensive Git command reference organized by workflow, covering syntax, common flags, and one-line descriptions.