Important GIT Commands For Data Scientist

Original article was published by Cornellius Yudha Wijaya on Artificial Intelligence on Medium

GIT Command

Before we start, let’s try to create a new folder in your local drive. It could be anywhere you want. Then inside the new folder, try to have any file you want; In my case, it is a jupyter notebook.

After that, try to right-click in your new folder and choose the “Git Bash Here.”

There would be a command prompt shown up, for your first time, there might be credential information you need to input. Just follow the step, and we are ready to start.

1. Git init

Every hero has a start, and so does Git. When you are using Git for version control purposes in your local area, you need to set up the environment first.

Git init was used to do that. Try to run git init in your command prompt where the directories are in your intended folder. There should be a message that looks like this.

Now we already set up the environment or our repo in the local folder that ready to accept any git command.

2. Git status

The next step we would do is checking our git environment status. What status here means is checking whether there is any file in the staging area or not.

So, what is the staging area? This is basically an area where you put or tracked your files before making any changes to them. This is where the files are sorted if you want to send it, removed it, or add any new files. This is called the staging area because after this area, it would be permanent.

To try the command, we can run git status in our command prompt. It should show something like this.

With this command, the status of our file is shown. We only have untracked files, which means this file is not yet added to the staging area. So, what to do next? We need to add these files to the staging area.

3. Git add

Just like you can see above, we add the files to the staging area by running the git add command. Specifically, we would need to type git add <filename> where <filename> is the name of the file you want to add to the staging area.

It would be a hassle to add manually every single file name. Imagine if you have a thousand files in the local folder and how long it would take to input every file. In this case, we can add all the file inside the folder into the staging area by run git add . in the command prompt.

When you have finish add every file into the staging area, try to run the git status once more. It should look like this.

Every file in the folder is now in the staging area.

4. Git commit

When we already have all our files in the staging area, we need to commit if we want the staging area files are the one we want.

If you are sure, then we need to run the git commit command. The complete command is git commit -m "<your comment>" where <your comment> is your log messages or some simple note for you to remember.

Let’s try to run the git commit. When it is done, it should look like this.

In my folder, there are two files, so that is why there are two files committed.

5. Git log

If you need to see every commit you have done in your repo, we can run git log. It could show your repository’s history of commits. As the author, there should be important information, the commit key, commit date and log message.

6. Git push

When you create a new repo in the GitHub, you would see a series of messages like this.

You could run the command from the beginning to the end, but the only important part right now is to learn what is git push.

This git pushcommand that puts your repo from your local to the Git Hub’s online repo. It just likes the name, push the repo.

In this step, I would skip running the git branch -M main command as we don’t need it right now.

What you need to run first is the git remote add origin <your git domain> where <your git domain> is the address of your git repo.

So, what we did in the command above is creating a variable called ‘origin’ with the variable object are <your git domain>.

When you had created the ‘origin’ variable, we need to push our local repo to the ‘origin’ repo. What we need to do next is run the git push -u origin master. This command would push our local repo (called master) to the ‘origin.’ After it finishes, it should look like this.

And your GitHub repo should look like this.

We know already have track our historical version of our files and data using Git, and the history is also stored in the local repo in the GitHub.