What is it?
Git is a distributed version control system that tracks changes to files over time. Every change is recorded with who made it, when, and why.
Why does it matter?
Git is used by virtually every software team on earth. Without it collaboration is impossible. It is non-negotiable in any professional role.
Learn what Git is, why it matters, and how to make your first commit.
Real-World Use Cases
- 👥 Team collaboration - Multiple developers work on the same codebase without overwriting each other.
- 🔄 Rollback safety - Broke something? Revert to any previous working state in seconds.
- 🌿 Feature development - Create isolated branches for features — experiment freely without affecting main.
- 🚀 CI/CD pipelines - Every push triggers automated tests and deployments — Git is the trigger.
Install and Configure
git config --global user.name "Rahul Kumar"
git config --global user.email "rahul@ezycoders.in"
git config --global init.defaultBranch mainFirst Commit
mkdir my-project && cd my-project
git init
echo "# My Project" > README.md
git add README.md
git commit -m "Initial commit: add README"
git logDaily Essentials
git status # what changed?
git diff # line-by-line changes
git log --oneline # compact history
git commit -am "Fix typo" # add+commit tracked filesQ: What is the difference between git add and git commit?
git add stages changes in the staging area. git commit saves the staged snapshot permanently to history. The two-step process lets you control exactly which changes go into each commit.
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