🐙 Git × GitHub — Cheat Sheet & Scenario Guide

Everything you need to go from zero to confident with Git & GitHub
Cheat sheets · Illustrated PDFs · Real-world scenarios · Basic → Advanced

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📌 Why This Repo?

Most Git tutorials either drown you in theory or show you 3 commands and call it a day.
This repo takes a scenario-first approach — real situations, exact commands, and explanations of why each one works.

Whether you're:

• 🆕 Pushing your first file to GitHub
• 🤝 Collaborating on a team project
• 🔥 Recovering from a bad git reset
• 🚀 Tagging releases and working with PRs

...this repo has you covered.

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📂 What's Inside

GitxGithub/
├── 📁 Git/
│   ├── 📄 Git_GitHub_101.pdf          ← Basics: CLI, branching, forking, stash, rebase
│   ├── 📄 Git_Github Notes.pdf        ← Workflow notes & command reference  
│   ├── 📄 git-cheat-sheet-education.pdf ← Official GitHub cheat sheet
│   └── 📄 git_missing_topics(other than 101,notes,cheatsheet).pdf ←Other than the above 3 pdfs covers everything
├── 📁 Scenario-Based_Guide/
│   └── 📄 git_scenarios.pdf  ← Loaded with Real Word Scenarios for better understanding
└── 📄 README.md                       ← You're here

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📘 What Each Resource Covers

🔰 1. Git & GitHub 101

• Basics of Git CLI
• init, clone, add, commit, push
• Branching, merging, PRs

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🎯 2. Scenario-Based Guide

📄 git_scenarios.pdf

Learn Git like a real developer:

• First-time setup
• Uploading code
• Branching & merging
• Fork & PR workflow
• Merge conflicts
• Undoing mistakes
• Team workflows
• Releases & tagging
• Advanced debugging

💡 Based on real-world developer situations
👉 This replaces traditional boring tutorials

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🧠 3. Advanced Topics

📄 git_missing_topics.pdf

Covers what most tutorials don’t teach:

• git reflog (recover anything)
• git cherry-pick
• git bisect (debug faster)
• git blame
• git commit --amend
• GitHub CLI (gh)
• SSH & Authentication
• Advanced .gitignore

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📄 4. GitHub Cheat Sheet

• Quick command reference
• Perfect for revision

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📋 10 Real-World Scenarios Covered

#	Scenario	What You'll Learn
01	First-Time Setup	git config, SSH keys, no-password auth
02	Upload Your First File	clone → add → commit → push
03	Working with Branches	feature branches, merge, cleanup
04	Contributing via Fork	fork, upstream remote, pull requests
05	Handling Merge Conflicts	conflict markers, manual resolve
06	Undoing Mistakes	restore, reset, revert — matched to situation
07	Keeping Fork in Sync	fetch, rebase, reset --hard upstream
08	Team Feature Branch Workflow	squash commits, PR review, protect main
09	Tagging & Releasing Versions	annotated tags, GitHub Releases, semver
10	Cherry-pick & Bisect	apply one commit anywhere, binary-search bugs

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🚀 Quick Start — The Everyday Loop

New to Git? Run these 4 commands. That's it.

# 1️⃣  One-time setup (first time on any machine)
git config --global user.name "YourName"
git config --global user.email "you@example.com"

# 2️⃣  Clone the repo once
git clone https://github.com/YourUsername/YourRepo.git
cd YourRepo

# 3️⃣  Stage → Commit → Push  (repeat for every change)
git add path/to/YourFile.java
git commit -m "Add InsertLinkedList.java to LinkedList folder"
git push origin main

🔥 If push is rejected (someone else pushed first):

git pull origin main --rebase
git push origin main

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🧠 The Commands You Actually Need to Know

# ── Daily workflow ────────────────────────────────────────────
git status                        # what's changed?
git add .                         # stage everything
git commit -m "feat: your msg"    # commit
git push                          # push

# ── Branches ─────────────────────────────────────────────────
git checkout -b feature/my-thing  # create + switch
git checkout main                 # go back to main
git merge feature/my-thing        # merge in

# ── Oops recovery ────────────────────────────────────────────
git restore filename.txt          # undo unsaved edits
git restore --staged filename.txt # unstage a file
git reset HEAD~1 --soft           # undo last commit, keep changes
git revert abc1234                # safely undo a pushed commit

# ── Inspect ──────────────────────────────────────────────────
git log --oneline --graph --all   # visual branch history
git diff                          # what changed (unstaged)
git blame filename.js             # who wrote each line
git reflog                        # full history — recover anything

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🤝 Contributing

Contributions are welcome! Found a missing scenario? A cleaner explanation?

# 1. Fork this repo (click Fork button above)
# 2. Clone your fork
git clone https://github.com/YOUR_USERNAME/GitxGithub.git

# 3. Create a branch
git checkout -b improve/scenario-name

# 4. Make your changes, commit
git add .
git commit -m "Add: scenario for GitHub Actions workflow"

# 5. Push and open a Pull Request
git push origin improve/scenario-name

Then open a Pull Request from your fork → this repo's main.

Good first contributions:

• 📝 Fix a typo or unclear explanation
• ➕ Add a missing command or scenario
• 🌍 Add examples for Windows (most examples use Mac/Linux)
• 🖼 Improve illustrations or diagrams in the PDFs

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🌟 Share This Repo

If this helped you, consider:

• ⭐ Starring the repo (top right of this page)
• 🍴 Forking it to build your own version
• 📢 Sharing in your dev community, discord, or college group

Every star helps more developers find this resource.

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📬 Connect

Made by Krish6115 — CS undergraduate, Full-Stack developer, competitive programmer & AI/ML Enthusiast.

Feel free to open an issue if something's unclear or missing.

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⭐ Star · 🍴 Fork · 📢 Share

Built for developers who want to understand Git, not just memorize commands.