COMPLETE GIT AND GITHUB

Complete Guide to Git and GitHub – Beginner to Advanced

If you are a developer, Git and GitHub are two tools you must master. In this blog, we will understand Git and GitHub in deep detail – from basics to advanced concepts.

1️⃣ What is Git?

Git is a Distributed Version Control System (DVCS) used to track changes in source code. It helps developers collaborate and maintain project history.

Why Git is Important?

Tracks changes in files
Maintains version history
Supports team collaboration
Allows branching and merging
Prevents code loss

How Git Works

Git works in three main areas:

Working Directory – Where you write code
Staging Area – Where changes are prepared for commit
Repository – Where Git stores committed changes

2️⃣ Installing Git

Download from official website:

https://git-scm.com/

Check installation:

git --version

3️⃣ Basic Git Commands

Initialize Git

git init

Check Status

git status

Add Files

git add filename
git add .

Commit Changes

git commit -m "Your commit message"

View Commit History

git log

4️⃣ What is GitHub?

GitHub is a cloud-based platform where you can host Git repositories online. It allows developers to collaborate from anywhere.

Git vs GitHub

Git	GitHub
Version control system	Hosting platform for Git repositories
Works locally	Works online
Tracks changes	Enables collaboration

5️⃣ Connecting Git to GitHub

Create Repository on GitHub

Go to GitHub.com
Click on "New Repository"
Enter name and create

Connect Local Repo to GitHub

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

6️⃣ Branching in Git

Branching allows you to work on features without affecting the main code.

Create Branch

git branch feature-name

Switch Branch

git checkout feature-name

Merge Branch

git merge feature-name

7️⃣ Pull and Push

Push Code to GitHub

git push origin main

Pull Latest Changes

git pull origin main

8️⃣ Fork and Pull Request

Fork

Fork means copying someone else's repository into your GitHub account.

Pull Request (PR)

A Pull Request is a request to merge your changes into the main project.

9️⃣ Advanced Git Concepts

Git Clone

git clone repository-url

Git Reset

git reset --hard commit-id

Git Rebase

git rebase main

Git Stash

git stash
git stash pop

🔟 Git Workflow (Real Industry Flow)

Clone Repository
Create New Branch
Make Changes
Add & Commit
Push to GitHub
Create Pull Request
Code Review
Merge

🔥 Why Every Developer Must Learn Git & GitHub

Industry standard
Required in almost every company
Essential for open-source contribution
Improves team collaboration

🎯 Conclusion

Git helps you manage code versions. GitHub helps you collaborate and share your code with the world. Together, they form the backbone of modern software development.

If you want to become a professional developer, mastering Git and GitHub is not optional — it is mandatory.

Written by: LearnWithRehan