🚀Day-01: Git-Zero-To-Hero-series

🧱 Git Fundamentals & Setup (2 hours)

🕐 Hour 1 — Core Concepts

👉 Learn theory + visual understanding

• What is Git?

  • Distributed Version Control System

  • Tracks changes to files over time

  • Helps in collaboration and rollback

• Difference between Git and GitHub

  • Git = tool (local)

  • GitHub = remote hosting service for Git repositories

• Key Git Concepts (Understand these clearly):

  • Repository

  • Commit

  • Working directory, Staging area, and .git folder

  • Branch

  • Remote repository

  • Merge and Pull

  • HEAD (pointer to current commit)

• Visualize Git Workflow:

  • Working Directory → Staging Area → Local Repository → Remote Repository.

🕒 Hour 2 — Hands-on Practice

👉 Practical setup and first Git operations

Step 1. Install Git

On Ubuntu / WSL / Linux:

sudo apt update
sudo apt install git -y

• On Windows: Install via https://git-scm.com/downloads
  (Make sure to enable “Git Bash”)

Step 2. Configure Git (one-time setup)

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

Step 3. Create Your First Repository

mkdir git-demo
cd git-demo
git init

Creates .git hidden folder (Git’s database)

Step 4. Add and Commit Files

echo "Hello Git" > hello.txt
git status
git add hello.txt
git commit -m "Initial commit - added hello.txt"
git log

Step 5. Modify and Track Changes

echo "Learning Git Day 1" >> hello.txt
git status
git diff
git add hello.txt
git commit -m "Updated hello.txt with learning message"

Step 6. View Commit History and Changes

git log --oneline
git show HEAD

✅ Day 1 Output Checklist

By the end of today, you should:

✔️ Know what Git is and how it works conceptually

✔️ Have Git installed and configured

✔️ Have created your first repository

✔️ Be able to track, commit, and view file changes