Git & GitHub Crash Course For Beginners

What You Will Learn

• Understand the basics of Git and its importance in version control
• Learn how to initialize a Git repository and add files to it
• Discover how to commit changes and use basic Git commands

Key Concepts

Git is a version control system that tracks changes in computer files. It was created by Linus Torvalds in 2005 and is a distributed or decentralized version control system, allowing multiple developers to work on a single project without being on the same network. Git keeps track of code history with snapshots of files, and you can always go back to see any snapshot of previously written code. You can put your code in a staging area before committing, and once you make a commit to a remote repository, other developers can pull that information onto their machines.

Code Examples

git init

Initializes a Git repository in the current directory.

git add index.html

Adds the index.html file to the staging area.

git commit -m "initial commit"

Commits changes with a meaningful commit message.

git add .

Adds all files in the directory to the staging area.

git status

Displays the status of the repository, including which files are staged and which are not.

Lesson Summary

In this lesson, we learned about the basics of Git and how it is used for version control. We started by understanding what Git is and how it was created. We then moved on to initializing a Git repository using the git init command and adding files to it using the git add command. We also learned how to commit changes using the git commit command and how to use the git status command to check the status of our repository. Additionally, we learned about the staging area and how to use the git add command to add files to it. We also touched on the concept of remote repositories and how to push our changes to them. By the end of this lesson, you should have a good understanding of the basic Git commands and how to use them to manage your code.

Practice Exercise

Create a new directory on your computer and initialize a Git repository in it. Create a few files, such as a README.md and an index.html, and add them to the repository using the git add command. Then, commit the changes using the git commit command. Finally, use the git status command to check the status of your repository.

What Is Next

In the next lesson, we will learn about branching and merging in Git, which will allow us to work on different features of our project simultaneously and then combine them into a single, cohesive whole. We will also learn about remote repositories and how to collaborate with other developers on a project.