Beginner Guide · Git & GitHub
Git and GitHub Basics Explained in Plain Simple Language
Quick summary — Git & GitHub in 3 sentences
Git is a tool on your laptop that saves "snapshots" of your code (like a video game save file). GitHub is a website where you upload those snapshots so your team can see them and work together. When you put them together, you get version control — the ability to go back in time if you break your code.
In this guide, you will learn:
- What is Git? — The save button for your code.
- What is GitHub? — The cloud storage for developers.
- The 4 Commands You Need — Add, Commit, Push, Pull.
- Why Every Company Uses It — The job market reality.
SECTION 01What is Git?
Imagine you are writing a 100-page essay. You save it as essay_v1, essay_v2, essay_final, essay_final_REAL.
Now imagine you could just hit one button and say "save this version, and call it 'fixed the introduction'". That is Git.
Git is a software installed on your laptop.
It tracks changes to your files.
It does NOT need the internet.
It is free.git commit -m "fixed the login bug"
This saves a snapshot of your code.
If you break something later, you can
go back to this exact snapshot.SECTION 02What is GitHub?
GitHub is a website (owned by Microsoft). If Git is the save button, GitHub is Google Drive for your code.
It does three things:
- Backup: If your laptop breaks, your code is safe on GitHub.
- Collaboration: Your teammates can see your code and suggest changes.
- Portfolio: It is your public resume. Recruiters look at your GitHub profile.
SECTION 03The 4 Commands You Need
You don't need to memorize 50 commands. For 90% of your work, these 4 are enough:
| Command | In Plain English |
|---|---|
git add . | "Put all my changes in the box." (Staging) |
git commit -m "message" | "Seal the box and label it." (Saving locally) |
git push | "Ship the box to GitHub." (Uploading) |
git pull | "Bring changes from GitHub to my laptop." (Downloading) |
SECTION 04Git vs GitHub (The Difference)
| Git | GitHub | |
|---|---|---|
| What is it? | A tool (software) | A website (cloud) |
| Where does it live? | On your laptop | On the internet |
| Needs internet? | No | Yes |
| Made by | Linus Torvalds (same guy who made Linux) | Microsoft |
| Purpose | Track versions | Collaborate & share |
SECTION 05Why Every Company Uses It
If you apply for a developer job, 99% of companies will ask for your GitHub profile.
- It proves you can code. Recruiters see your actual projects.
- It proves you can work in a team. They see how you write commit messages and handle branches.
- It is the industry standard. Every tech company (from Google to local startups) uses Git.
SECTION 06Git Beginner Checklist
Setup:
☐ Install Git on your laptop.
☐ Create a GitHub account.
☐ Set your username and email in Git.
☐ Generate an SSH key (optional but helpful).Daily Workflow:
☐ Write code.
☐ git add .
☐ git commit -m "what I did"
☐ git push
☐ git pull (if working with others)Portfolio:
☐ Pin your best 3 repositories.
☐ Add a README with setup instructions.
☐ Include screenshots or GIFs.
☐ Make sure it actually runs.SECTION 07Interview Q&A — Git basics
Q1What's the difference between Git and GitHub?
Git is a local version control tool; GitHub is a cloud platform to host Git repositories.
Q2What is a commit?
A snapshot of your code at a specific point in time. It's like a save point in a video game.
Q3What is a branch?
A separate line of development. You can build a feature on a branch without affecting the main code.
Q4What is a pull request (PR)?
A request to merge your branch into the main branch. It allows your team to review your code.
Q5Why is GitHub important for jobs?
It's your public portfolio. Recruiters use it to see if you can actually code and collaborate.
SECTION 08Test yourself — Git Quiz
Five questions. No sign-up.
0 / 5Pick an answer to see why it is right or wrong.
SECTION 09Frequently asked questions
Do I need to know Git to get a job?
Yes. Almost every developer role requires basic Git and GitHub knowledge.
How long does it take to learn Git?
To learn the basics (add, commit, push, pull), it takes about 1-2 hours. To master branches and merge conflicts, it takes a few weeks of practice.
Is GitHub free?
Yes. GitHub is free for public and private repositories.
What if I make a mistake?
Git is designed to fix mistakes. You can revert to a previous commit at any time.
Should I use the command line or a GUI?
Start with the command line to understand what's happening. Then switch to a GUI (like GitHub Desktop) if you prefer.
SECTION 10Related reads
Classroom & online · Noida
Your Git skills are a superpower — and we'll teach you how to use them
Our Full Stack Development Course includes Git & GitHub fundamentals, portfolio building, and 1:1 mock interviews.
₹18,500 · full programme- Git & GitHub fundamentals
- Portfolio & GitHub review
- Mock interviews
- Weekday & weekend batches