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So here I'm on GitHub, and on GitHub I'm going to create this new repository, and we call

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it Lesson 19 Lab. Let's be more complete, Linux plus Lesson 19 Lab. That's a long name,

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but given the popularity of many of my Git repositories, I like to be very specific.

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So here it's telling me what to do, and well, I first need to create all of this in my Linux

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system, and then I'm just going to run all of these commands. Why wouldn't I copy-paste

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them to make it easy? So let's go to Linux. Let me copy these commands, and now I'm going

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out of my previous Git repo, and I'm going to use mkdir Linux plus Lesson 19 Lab. Getting

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in there and pasting the commands that I just copied from GitHub, and that is taking care

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of all the basic information. And okay, there it's coming for the username again. Well,

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my username is Sander van Vugt, and my password, ah, do we get that again? And why do we get

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that? Well, it is getting this because of the Git remote add. You know what? I'm going

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to remove it, and I'm going to do it again, and this time we do it the smart way. So rm

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minus rf on Linux plus Lesson 19 Lab, just to make sure that everything is removed. mkdir

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Linux plus Lesson 19 Lab. And then in Linux plus Lesson 19 Lab, echo Lesson 19 Lab in

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the readme.md. I think that's good enough. Then Git init. I forgot to do my Git init.

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And after the Git init, we do what? Well, we need to Git add and Git commit. So Git add

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star and Git commit. Minus m new repo commit. Then do I miss anything? Well, we need to

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Git the Git branch, and then we have to Git remote add. And the Git branch is still what

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we wanted to. Git branch minus m main. So the next command that we have seen in the

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output is this. I'm going to paste it to make it a little bit easier. I can't do that because

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if I do that, it's going to use HTTPS. That's password-based, and that's wrong. So I need

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Git remote add origin. Git add github.com Sander van Vugt slash Linux plus Lesson 19 Lab dot Git.

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And why do I do that? Well, I do that because the HTTPS link requires me to log in with the

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username and password, and you can't log in with username and password anymore. So

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we change that. Remember, this is why we created the SSH keys. So now I can use my Git push

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minus u origin main. And uh-oh, something went wrong. Yeah, something went wrong. I made

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this error on purpose because this is a very obvious error, and you're going to make that

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as well. In the Git URL, you don't have a server name slash. No, you have server name

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colon. So there's a colon separating the server and the username. And oh, boy, there it is

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telling me remote origin already exists. Yeah, that is right. But fortunately, now we can

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use Git remote set URL. I'm going to change the existing remote for origin, and I'm going

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to set it to Git at GitHub dot com colon Sander van Vugt slash Linux plus Lesson 19 Lab dot

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Git. And now we can try the Git push minus u origin main again. And as you can see, that

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is working out all right. Good. That was part one. That was fun, wasn't it? Now we're in

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for part two, where I'm going to use Git branch testing and Git checkout testing and

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touch four dot txt and five dot txt. And then I'm using echo five dot txt, and I'm writing

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it to the dot Git ignore. Next, I'm using Git add star. And there we can see that five

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dot txt is ignored. And that is okay. And I'm using Git commit minus m three, whatever

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message you want, feel free to replace it with anything. And I'm going to use Git push

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minus minus set upstream origin testing, and that is pushing the new branch to upstream so

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that my fellow developers can share it as well. Now I'm going to use Git checkout main

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and Git merge testing. And now when I use LS, I can see my five dot txt as well as my

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four dot txt. And that is what we had in mind for this lab.