Whether you're an aspiring DevOps engineer or a software developer, understanding Git and GitHub is fundamental. These tools are the backbone of version control, collaboration, and deployment workflows.
🌱 What is Git?**
Git is a distributed version control system that helps you track changes in your codebase, collaborate with teams, and manage your project history.
🔧 Key Features:
Tracks file changes across time
Enables team collaboration through branches
Supports merging, rebasing, and reverting changes
📌 Official Git site: https://git-scm.com
🐙 What is GitHub?
GitHub is a cloud-based platform that hosts your Git repositories and adds collaboration features like issue tracking, pull requests, CI/CD, and project boards.
💡 Think of it as Git + collaboration + cloud = GitHub.
📌 GitHub site: https://github.com
💻 Installing Git
You can install Git by running:
🖥️ On macOS:
brew install git
🖥️ On Ubuntu/Debian:
sudo apt update
sudo apt install git
🖥️ On Windows:
Download from https://git-scm.com/download/win
🔰 Common Git Commands
git init # Initialize repo
git clone # Copy repo
git status # Check changes
git add . # Stage changes
git commit -m "" # Commit
git push # Push to remote
🤝 Using GitHub for Collaboration
Fork a repository
Clone it to your local machine
Create a new branch
Make changes and push
Submit a pull request
📚 Learn Git branching visually: https://learngitbranching.js.org/
🧪 GitHub Actions (CI/CD): Automate workflows using YAML files
📌 GitHub Actions Guide
🧠 Real-World Use Case in DevOps
In DevOps, Git and GitHub are used to:
Manage Infrastructure-as-Code (IaC) with Terraform
Automate testing and deployment with CI/CD pipelines
Collaborate across teams on microservices
Track and resolve incidents with GitHub Issues
📎 Resources to Dive Deeper
🔗 Pro Git Book (Free)
🔗 GitHub Learning Lab
🔗 Git Cheat Sheet PDF
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