Git and GitHub Explained for Beginners
Git is a tool that records every change you make to your code. GitHub is a website that stores your Git projects online so you can share them and work in a team.
Basic Git workflow
Run git init to start tracking a folder, git add to choose changes, git commit to save a snapshot and git push to upload it. Write short, clear commit messages that explain what changed and why.
Branches
A branch is a safe copy where you can try new ideas without breaking the main code. When the feature works, merge the branch back. Teams use branches so many people can work at the same time.
Why it matters for your career
Employers look at your GitHub profile. Keep your projects public, add a README to each one and commit regularly. A tidy profile is often more convincing than a CV.
Installing Git and the first steps
Download Git from its official website and install it with the default options. Open a terminal in your project folder and tell Git who you are with your name and email. Then run git init, and your folder becomes a repository. From now on, Git can remember every version of every file, so you can experiment without fear. If a change goes wrong, you can return to an earlier snapshot in seconds.
The three areas of Git
It helps to picture three areas. The working folder is where you edit files. The staging area is where you choose which changes belong in the next snapshot, using git add. The repository is where snapshots are stored permanently after git commit. Use git status often to see which files changed, and git log to see the history of your commits.
Working with GitHub
Create a free GitHub account and a new repository. Connect your local project with the remote address, then use git push to upload your commits. To get a project from someone else, use git clone. Others can fork your repository, suggest changes with a pull request and you can review and merge them. This is how most open-source projects work and how developers around the world collaborate.
Branches and teamwork
Create a branch for every new feature or fix. Work there, commit often and open a pull request when you are finished. A teammate reads your changes, leaves comments and approves them, and only then is the code merged. This process catches mistakes early and spreads knowledge across the team. If two people change the same line, Git reports a merge conflict; open the file, choose the correct version and commit again.
Good habits
Commit small, logical changes and write messages in the present tense, such as add contact form validation. Never commit passwords, API keys or large temporary files. Use a gitignore file to tell Git which files to skip. Pull the latest changes before you start work each day so that you do not fall behind your team.
Common beginner problems
If you committed the wrong file, remove it from staging before the next commit. If you want to undo the last commit but keep your work, use a soft reset. If you are afraid of breaking something, create a new branch first, because branches are cheap and safe. Do not be discouraged by the terminal; after a week of daily use the main commands become automatic.
Build your public profile
Add a clear README to each project explaining what it does, how to run it and a screenshot. Pin your best repositories on your GitHub profile. Recruiters and clients often check this before they contact you, so treat your profile like a portfolio and keep it active.