Git Tutorial for Beginners Crash Course

Your local repository consists of three “trees” maintained by git. The first one is your Working Directory which holds the actual files. The second one is the Index which acts as a staging area and finally the HEAD which points to the last commit you’ve made. Git merge is a command used to get the files from the local repository into the working directory. Which means the files with the updated changes are marked to be committed to the local repository but not yet committed. Git also helps you synchronise code between multiple people.

git fundamentals

Git is a version control system which you can download to your computer, GitHub is a hosting & collaboration provider which hosts your Git projects. It is a web based solution allowing you to upload your Git Repositories to it. Will show the list of commits made on the stable branch but not the master branch. To put things git fundamentals simply, simply adding a .gitignore won’t cause Git to stop tracking files that are already being tracked but match the .gitignore spec. To actually untrack files, you also need to remove them from the index. At any point, you can run “git branch” to verify which branch you’re on and which branches are available locally.

Why Version Control?

If you have git already, it’ll just show you which version of git you have installed. Now that we know what Git is and it’s basic terminologies, let’s see how we can place a file under git.

Of course, for the above to work, VSCode should be installed and be in your path. Now, whenever you need to enter multi-line commit messages, or do stuff that requires any kind of editing, VSCode pops up. Run the below command to edit all your settings. Once you’ve installed it, you should be able to run the command “git” on terminal. For Windows, you’ll notice that after installation, you get a special terminal called “Git bash”. This is a special terminal/command window on Windows that tries to emulate a Unix-like terminal.

Customizing Git

Go ahead and add a new file to the project, using any text editor you like or running a touch command. `touch newfile.txt` just creates and saves a blank file named newfile.txt. Revision represents the version of the source code. Revisions in Git are represented by commits.

What is Git and why it is used?

What is Git? Git is a DevOps tool used for source code management. It is a free and open-source version control system used to handle small to very large projects efficiently. Git is used to tracking changes in the source code, enabling multiple developers to work together on non-linear development.

This is work in progress after all. The opposite of centralized source control is decentralized source control, of which Git is an example.

Can I complete this GIT Basics program in 90 days?

The range notation “HEAD..FETCH_HEAD” means “show everything that is reachable from the FETCH_HEAD but exclude anything that is reachable from HEAD”. Alice already knows everything that leads to her current state , and reviews what Bob has in his state that she has not seen with this command. Note that in general, Alice would want her local changes committed before initiating this “pull”. This merges the changes from Bob’s “master” branch into Alice’s current branch.

  • That makes the other people who see your commit sad.
  • When you clone a repository, REMOTE is typically origin.
  • You can work in your branch without affecting other branches.
  • Most modern tools support this out of the box.
  • Now you can write your message, and provide more information if you want, right below it.

If Alice has made her own changes in the meantime, then she may need to manually fix any conflicts. To instruct Git to ignore the env.txt and afolder folder, I’ll create a new file in the root of my repo called .gitignore.

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