Git & GitHub: A Beginner’s Guide to Version Control (Made Simple)
If you're aiming for a career in software, cloud engineering, DevOps, or any modern tech role, learning Git and GitHub will make collaborating and managing code much easier.
In this guide, you'll learn:
What Git and GitHub are
How to install and configure Git
How to create a repository
How to make commits
How to push and pull code
Let's dive in.
What is Git?
Git is a version control system.
Version control is the process of tracking changes to your code over time.
It's a tool that runs on your computer to save and track changes to your files.
What is GitHub?
GitHub is a cloud platform where Git repositories are stored online.
While Git works on your computer, GitHub allows you to:
Store code online
Collaborate with other developers
Share projects
Back up your work track
Git tracks changes locally on your computer; GitHub stores and shares repositories online.
Installing and Setting Up Git
Before using Git, you need to install it.
Step 1: Download Git
Install Git: https://git-scm.com
Download the version for your operating system and install it.
Step 2: Verify Installation
Open your terminal (Git Bash) and run.
You should see something like this:
This confirms Git is installed.
Step 3: Configure Git
Git needs to know your name and email so it can record who made changes.
Example:
git config --global user.name "Your Name"git config --global user.email "you@example.com"
This only needs to be done once.
Creating a Repository
A repository (repo) is simply a folder where Git tracks your project.
Step 1: Create a Project Folder
Example:
Step 2: Initialize Git
To initialize Git, Run:git init
Git will respond with: initialized empty Git repository
Your project is now a Git repository.
This folder stores all version history.
Adding Files to Git
To add all files, use: git add
This moves the files to something called the staging area.
Making Your First Commit
A commit is like saving a snapshot of your project at a specific moment.
If you run the git status command, it will show that there's no commit yet
It's like a report card for your repository. It tells you the current state of your Git project and what's going on
To make a commit, run: git commit -m "message"
Now Git permanently records that version of your code.
Each commit includes:
What changed
Who made the change
When it happened
Creating a Repository on GitHub
Now let's store the project online.
Step 1: Go to GitHub
Visit: https://github.com
Create an account if you don't already have one.
Step 2: Create a New Repository
Click the "+" drop-down in your GitHub home page.
Then click "New Repository."
Fill in:
Repository name
Description (optional)
Choose Public or Private
Click Create Repository.
GitHub will generate commands for connecting your local project.
Connecting Git to GitHub
To push your code to GitHub, you need to connect Git to GitHub
Copy the repository URL you created from GitHub
Paste it into the Git Bash
Run
git push origin masterIf you haven't connected it before, it will show you a pop-up labeled "Sign In."
After signing in successfully, you should see something like this:
Pushing Code to GitHub
Once you're connected to GitHub, your code will be sent there.
The code "Hi. this is Baribor, I'm a Cloud DevOps Engineer" is now live on GitHub.
Pulling Code from GitHub
If you make any updates on GitHub, you can download them using the command:git pull origin master
Fetches the latest changes
Updates your local project
This is very common when working with teams.
So here, the code is changed from "Hi. This is Baribor, I'm a Cloud DevOps Engineer" to "Hi. This is Baribor, I'm a Cloud DevOps Engineer. Welcome!"
Run the update on git with the command "git pull origin master."
To check the new update, run "cat index.html." This shows the new update.
Why Git Is So Powerful
Git is powerful because it allows you to:
Safely experiment with code
Collaborate with teams
Track every change
Recover lost work
Build professional portfolios
This is why every modern software and cloud project uses Git.
For roles like cloud engineers and DevOps engineers, Git is used daily to manage the following:
Infrastructure code
Automation scripts
Application deployments
Final Thoughts
Git and GitHub are fundamental tools in modern software development.
Once you understand the basic workflow:
You already know the foundation of professional version control.
From here, you can explore more advanced features like the following:
Branching
Pull requests
Merging
CI/CD integration
Mastering Git will make you far more effective as a developer, cloud engineer, or DevOps professional.
