What is Git &GitHub and using it

What is Git?

Git is a distributed version control system that:

Tracks changes in your code/files over time

Enables collaboration between developers

Allows branching/merging of code

Maintains a full history of all changes

Key Git Concepts

Repository :

A project folder tracked by Git

Commit:

A saved snapshot of your changes

Branch:

Parallel version of your code

Merge:

Combining changes from different branches

Clone:

Copying a repository to your local machine

What is GitHub

GitHub is a cloud-based hosting service for Git repositories that adds.

Web interface for repositories

Pull requests and code review tools

Issue tracking and project management

Free public repositories (private repos require paid plan)

Getting Started with Git:

Install Git

# Linux (Debian/Ubuntu)

sudo apt install git

# Mac (Homebrew)

brew install git

# Windows

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

Basic Git Commands

# Initialize a new repository

git init

# Check status of files

git status

# Add files to staging area

git add filename.txt

git add .  # Add all changed files

# Commit changes

git commit -m "Descriptive message about changes"

# View commit history

git log

Working with GitHub

Create a repository on GitHub.com

git remote add origin https://github.com/username/repo.git

Link your local repo:

git push -u origin main

Common GitHub Workflow

# Get latest changes

git pull origin main

# Create a new branch

git checkout -b feature-branch

# After making changes.

git add .

git commit -m "Implemented new feature"

git push origin feature-branch