🧠 Introduction to Version Control

Keep track of code changes, collaborate with your team, and never lose progress again – all with version control!

📌 What is Version Control?

Version control is a system that helps developers manage and track changes to source code over time. It allows multiple people to collaborate on a project, roll back to previous versions, and avoid conflicts in code.

💡 Why It's Important

  • ✔️ Track every change made to the codebase
  • ✔️ Collaborate with multiple developers without confusion
  • ✔️ Revert back to a stable version if something breaks
  • ✔️ Experiment safely using branches
Git Logo

🌐 Learn More About Git

🧭 Version Control Flow – Step-by-Step Timeline

📁
Initialize Git Repository

Start a Git repository in your local project using git init.

Read: git init →
📥
Stage Changes

Add changes to the staging area using git add filename.

Read: git add →
📝
Commit Changes

Record a snapshot of your code with a message using git commit -m "message".

Read: git commit →
📤
Push to GitHub

Upload your commits to a remote repo like GitHub using git push origin main.

Guide: Push to GitHub →
🔄
Collaborate

Others pull changes, create branches, and contribute via pull requests.

GitHub Collaboration →

🧾 Git & GitHub Cheatsheet

Handy commands every developer should know. Tap any card to reveal the command.

🔧 Initialize Repository

git init

Docs →
📥 Clone Repository

git clone [URL]

Docs →
🔍 Check Status

git status

Docs →
➕ Add Files

git add . or git add [filename]

Docs →
📝 Commit

git commit -m "your message"

Docs →
🚀 Push to Remote

git push origin main

Docs →
🔁 Pull Updates

git pull

Docs →
📜 View Log

git log

Docs →
🌿 Branching

git branch | git checkout -b new-branch

Docs →

🔍 Git vs GitHub – Key Differences

Understand the core differences between Git and GitHub with this comparison.

🐙 Git

  • Local Version Control System
  • Tracks code changes on your computer
  • Doesn’t require internet connection
  • CLI based tool (Command Line Interface)
  • Examples: git init, git commit

☁️ GitHub

  • Cloud-based Hosting for Git Repositories
  • Collaboration tool for teams
  • Requires Internet to push/pull
  • Includes GUI and web interface
  • Examples: git push origin main, PRs, Issues
Feature Git GitHub
Type Version Control Tool Cloud Platform for Git Repositories
Access Local (Offline) Online (Web-based)
Interface Command Line Interface (CLI) GUI + CLI + Web UI
Use Case Track code changes, branching Collaboration, code sharing, CI/CD
Examples git init, git commit git push, Pull Requests, Actions

GitHub Repository Structure

Understand the layout of a typical GitHub project repository and what key files/folders are used.

  • README.md – Contains project description, setup guide, and usage instructions.
  • .gitignore – Lists files/folders to be ignored by Git.
  • LICENSE – Specifies the license under which the code is distributed.
  • /src – Source code files reside here.
  • /public – Static files such as HTML, images, etc.
Folder Structure
GitHub Folder Structure

Most Used Git Commands

Here are the most frequently used Git commands every developer should know.

git init

Initialize a new Git repository in your project directory.

git clone

Clone an existing repository from GitHub or another remote.

git add

Add files to the staging area before committing.

git commit

Record changes to the repository with a message.

git push

Push local commits to the remote repository.

git pull

Fetch and merge changes from the remote repository.

Videos, Articles & PDF Resources

Explore these top-rated videos and articles to master Git and GitHub effectively.

Git & GitHub Crash Course

GitHub Tutorial – freecodecamp

Git Handbook

Official Git Handbook from GitHub Docs.

Read Article
Git Cheat Sheet (PDF)

Official GitHub Git Commands Cheat Sheet (downloadable).

Download PDF
Atlassian Git Tutorials

A full collection of Git best practices and learning guides.

Visit Site