Okay in this video we're going to look at how we go about submitting our first programming assignment, lab zero. In the previous video we showed you how to install the virtual machine you'll be using, so lets go back to that VM player icon and double click on that. to get our VM started up again. And this time you'll see that it'll be listed in the set of VMs available. And we can just double-click that and get it to start playing. And again, just dismiss those windows that pop up. And it'll go through the installation process again. Since we started it from scratch again. And we'll get to our When this is completed we'll get to our log in screen. for our happy user. I will. Click on the happy user, type in my password, that I set up previously and we'll get started in our virtual machine. So, to get started on this first programming assignment, we're going to go to the course materials folder. Since we already updated the virtual machine, previously. We will see that labs, there's a lab zero folder already set up now. Every time you do update course, we will download a few more files that'll help you with the next homework assignment. So, let's open up lab zero and we'll see that there's a C file called Arrays.C. We can edit that file using the Emacs editor, although you can set up to use any editor you like. There's many available here under the Applications menu or the Accessories menu. So, I'm just going to up to our menu bar and click Emacs. Once Emacs comes up. I can go and open an existing file. And navigate to course materials. Lab zero Arrays.C. And here we'll see the contents of that file inside of Emacs. And I can. Now edit this file following the instructions for the homework assignment. Once I'm done, once I'm done with all of the things that I have to do for lab zero and I've finished my edits to the Arrays.C file. I can save it from Emacs and then go to a terminal window by just clicking on the terminal icon. And navigate to the lab zero directory. I can do that Linux by using the directory listing command, ls. and then the change directory command. In this case, I'm changing the directory to course materials. then listing its contents and changing the directory again to lab zero, where we see the Arrays.C file. At this point I can type submit homework, lab zero. Submit homework-homework is a little utility we've provided to help you with the submission process. And it asks me for my email address that I will need for my submission, if I can spell it correctly. And then, for my submission password. The submission password is not your Coursera password, but a single use password that's generated on the website. for your particular username. So, if I go to programming assignments, at the very top here I will see my submission log in, my email address I'm using, and a submission password. I can generate new passwords by just clicking on this. And then I have to make sure to use the most current one. so I'm going to use this one right now and go type that into the my virtual machine. I can take that password and type it in here. You will not see it being echoed to the screen so be careful in typing it in and making sure that you have all the . . . capital letters and lower case letters, correct? And then you can confirm that is in fact the file that you want to upload and, you can officially get credit for, this lab. We allow you to do up to three submissions and then we'll take the maximum score across the three. And that will be the general policy for all the homework assignments in the course. And you'll, be following essentially the same procedure for each one.