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Git & Version Control

A time machine for your code

Track every change, undo mistakes, and collaborate with confidence. Git is the version control system behind almost all modern software.

📘 10 lessons🚀 1 projects🗺️ 1 roadmaps🐞 5 error fixes

Git Setup

Install Git, configure it, and make your first commit.

terminal

# Download from https://git-scm.com

What it does

Git is the command-line tool that records the history of your project.

Why you need it

Every other step — committing, branching, pushing to GitHub — runs through Git.

Alternatives: GitHub Desktop or your editor's built-in Git UI.

terminal

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

What it does

Git stamps each commit with your name and email.

Why you need it

So your contributions are attributed correctly on GitHub and in history.

terminal

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

What it does

Initialize a repository, stage your files, and save the first snapshot.

Why you need it

This creates the history that lets you track and undo changes.

terminal

git remote add origin <url>
git push -u origin main

What it does

Connect your local repo to a GitHub repository and upload it.

Why you need it

A remote backs up your code and enables collaboration and deployment.