Git & GitHub – Complete Tutorial

Module 1: Version Control Basics

• What is Version Control?
• Why version control is required
• Centralized vs Distributed VCS
• Git vs SVN

Module 2: Introduction to Git

• What is Git?
• Git architecture
• Working Directory, Staging Area, Repository
• Local vs Remote repository

Module 3: Installing & Configuring Git

git --version
git config --global user.name "Your Name"
git config --global user.email "email@example.com"

Module 4: Basic Git Commands

git init
git status
git add .
git commit -m "Initial commit"
git log

• Initialize repository
• Track changes
• Commit history

Module 5: Working with Files

git diff
git restore file.txt
git reset HEAD file.txt

• View file changes
• Undo changes
• Unstage files

Module 6: Branching Concepts

• What is a branch?
• Why branches are needed
• Main / Master branch
• Feature branches

git branch
git branch feature-login
git checkout feature-login

Module 7: Merging & Conflicts

git merge feature-login

• Fast-forward merge
• Three-way merge
• Merge conflicts
• Conflict resolution

Module 8: Introduction to GitHub

• What is GitHub?
• GitHub vs Git
• Public & private repositories
• GitHub account setup

Module 9: Connecting Git to GitHub

git remote add origin https://github.com/username/repo.git
git branch -M main
git push -u origin main

Module 10: Clone, Fetch & Pull

git clone https://github.com/username/repo.git
git fetch
git pull

• Clone remote repo
• Sync changes

Module 11: Pull Requests (PR)

• What is a Pull Request?
• PR workflow
• Code review
• Approve & merge PR

Module 12: GitHub Branching Strategy

• Main / Develop branches
• Feature branches
• Release branches
• Hotfix branches

Module 13: GitHub Issues & Projects

• Creating issues
• Bug tracking
• Task boards
• Milestones

Module 14: GitHub Actions (CI/CD)

Automate build & test pipelines.

name: CI
on: [push]
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - run: mvn test

Module 15: GitHub Security & Best Practices

• SSH keys
• Personal Access Tokens
• Secrets management
• Protected branches

Module 16: GitHub with Jenkins

• Webhook integration
• Auto-trigger Jenkins jobs
• CI/CD pipeline flow

Module 17: Real-Time Project Workflow

• Developer creates feature branch
• Code pushed to GitHub
• Pull Request created
• CI pipeline triggered
• Merge to main branch

Module 18: Interview Questions & Real-Time Usage

• Git vs GitHub
• Difference between fetch & pull
• Merge vs rebase
• What is PR?
• How GitHub used in CI/CD?