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It's time again for another quick exercise this time you'll get some practice with the basic command

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line commands like touch and CD and Ls and the other ones that we've talked about in the last few videos

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.

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As always I'll do a quick intro to the assignment and then you should post the video and do this one

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on your own.

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So here's the assignment using only the command line.

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So no right clicking no file new file only the command line make a new folder called animals and then

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inside of the animals folder add two more directories.

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Awesome animals and sketchy animals.

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And then inside of the awesome animals directory I want you to add three different files Kappy Barakat

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J.S. arctic fox does Tim owl and tree frog TXI.

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And then instead of the sketchy animals folder add to other files brown recluse that all very sketchy

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spider and bullet and Dot.

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Yes.

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Next inside of the sketchy animals directory create a new directory called snakes inside of that snakes

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directory create two files COBRA to see assess and articulate it Python.

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Then you decide that bullet ants are actually not sketchy.

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They're totally misunderstood and you want to clear their name.

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So you're going to remove the bullet and Dot G-S file and then the very last thing is that unfortunately

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all animal life goes extinct and you have to delete the entire animal's directory and everything inside

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of it.

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So just to reiterate this is all with only the command line.

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So you shouldn't use your mouse at all just typing commands right here.

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You should be able to do all of this.

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And then there's a bonus at the end which is to see if you can do the whole thing without ever using

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the cd command.

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All right so it's a video.

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Definitely give this one a shot in your own.

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It's really really important that you get comfortable with the command line.

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As soon as possible.

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And then when you're ready unposed video and I'll be here with a quick solution already.

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Let's go ahead and go over the solution.

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So the first thing is that we need to make a new folder named animals and I didn't specify where you

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needed to do this so it doesn't actually matter.

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I'm going to do it right where I am inside of Intro to command line to make a new folder named animals

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.

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It's M-K KTAR animals and then Rigaud type.

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LS You can see animals instead of animals.

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Add to directory's awesome animals and sketchy animals.

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So CD instead of animals.

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And then we'll add a directory.

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So M-K DA are awesome animals and Cadia are sketchy animals.

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For the record we could have combined those onto one line and just said M-K DA are awesome animals space

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sketchy animals and that would make two for us instead of awesome animals.

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Add three files.

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Let's go inside of Manimal so CD awesome.

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There we go.

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And butts touch Kappy Bara dot.

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I always wanted to touch one of those touch and arctic fox that HMO and touch tree frog Dot T S T.

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And again just like with make directory we could have combined those into one line by saying touch carefully

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Barcott J.S. space arctic fox space tree frog and that would create three files.

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Let's just double check.

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Type ls.

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There are three files recreated.

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Now we need to go inside of the sketchy animals and add brown recluse that aged him l and bullet anti-Jesus

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so well back out.

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The dot dot.

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Now we're inside of animals and we're gonna go instead of sketchy animals and it's totally empty so

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we're going to touch two files brown recluse that HMO and bullet ant.

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Yes and I'm going to do them this time on the same line.

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So just touch brown recluse that H.T. male space pull it and touch us if we type LS he can see both

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of them were created for us.

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Now the next part is inside of sketchy animals create a snake's directory so that M KTAR make directory

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snakes

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and then instead of the snakes directory create the following files.

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Cobra does the SS and reticulated python p y.

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So we'll go into the snake's directory just like that and will make co-productions us so touch.

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Cobra does S. S. S..

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Hope I never have to touch COBRA and reticulated python P Y which is python Yes it's a very funny joke

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and we'll hit Enter now we type.

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There we go.

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We have our two files created.

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We touched both COBRA and a python.

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Then we have a change of heart and decide that bullet ants are no longer sketchy.

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So we want to delete that file.

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So I'm going to back out of the snake's directory.

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Now I'm inside of the sketchy animal directory and I'm going to delete brown recluse that aged him l

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with R M R M and then use tab completion brown recluse said time I'll hit enter.

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It's now gone then will CD back and then unfortunately all animal life has gone extinct.

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And now we need to delete the entire animal directory.

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So I'm going to back out so that now I see the animals directory.

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I'm inside of.

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INTRO TO command line and to delete that I need to use r.m dash R.F. animals and there we go type ls

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and animals is completely gone.

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Now let's quickly discuss the bonus which was to do all of the commands without ever changing directories

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so never using the CD command.

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It's actually not difficult to do it the same exact commands but we have to reference different paths

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.

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So let me show you what I mean to make a new directory called animals.

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That's exactly the same to make directory animals but rather than seeing into animals to make awesome

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animals and sketchy animals we can do a make directory animals slash awesome animals just like that

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and make directory animals slash sketchy animals.

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Now if I just type LS here all we see is animals but I could type.

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LS animals.

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And now we see awesome animals and sketchy animals so inside of awesome animals we're going to add these

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three phials coffee bar.

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Arctic fox and tree frog.

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So without leaving this directory we're going to do a touch animals slash awesome animals.

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We can use tab completion slash Caffre Bara dot J us and then do the same thing animals slash awesome

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animals.

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Except this time Arctic fox.

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H m l.

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And then one more time and I'm hitting the up arrow here.

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Just like in the javascript Council we can hit the up arrow to retrieve the most recent commands and

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we can keep hitting it to cycle through everything in our history.

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So using that just to save some time and we're going to create a tree frog that TXI me again if I just

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type ls.

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All I see is animals.

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So if I do ls animals

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animals slash awesome animals I now have those three files.

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Next up is instead of sketchy animals and brown recluse and bullet ants.

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So will do touch animals slash sketchy animals slash brown recluse dot T.M. and the same thing except

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for a bullet ant that genius.

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And then to verify that we can do an ls animals slash sketchy animals and we see both the files there

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without ever leaving our insured to command line directory.

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We're still right here.

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All right.

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Now onto my least favorite part.

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We have to create the snake's directory.

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There so sketchy they need their own directory here so we're going to make directory animals slash sketchy

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animals slash snakes and that will make us a directory and you can see that here instead of sketchy

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animals we now have a sneaky directory.

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Now instead of that snake's directory we need to make Cobra does s.c.s and reticulated python Python

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.

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So we're going to do a touch animals slash Sketchley animals slash snakes slash Cobra C Ss and the same

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thing except reticulated python I don't think it could have picked a longer animal name there.

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Now we can verify that with an us animals sketchy animals snakes and we get those two files.

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Next up we're going to delete the bullet and Jacque's file.

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So we still use r.m but we have do the full path.

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So animals slash sketchy animals slash bullet and thought genius.

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Now if I do ls animals slash Sketchley animals you can see that it's gone now.

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The easy part is to delete the entire animal's directory.

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You don't have to do anything fancy.

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All we need to do is r.m dash R.F. animals and we've now wiped out all animal life on this planet.

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You monster.

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All right so that's it for the exercise.

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Hopefully that was some good practice for you if at any point you struggled to recall or to use any

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of the commands that we talked about.

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I highly highly recommend that case.

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I cannot recommend it enough that you take some time away from this video.

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Don't move on just yet and practice.

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So whether that means watching the video again doing this exercise again making up your own exercise

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but those basic commands.

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Those six that we talked about so that's ls and CD touch and make directory an arm in arm dash RF are

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really important for basically everything we're going to do from here on out.