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The mkdir command is used to create directories.

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And here let's actually write our mkdir how it looks like here.

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So m k here that's actually make directory here.

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Basically make there.

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So here in order to work with MQTT here you're going to firstly use the mkdir and after that you will

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enter the directory name.

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So I was so here that when three periods full of an argument in the description of a command here,

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for example my dear one.

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So it means that the argument can be repeated.

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So do use here.

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With this we created just a single command in order to do more than one directory.

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So you will.

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You can also do this mkdir here, my dear, my dear to my dear three or my, my dear three, my dear

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four my special.

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And here, as you can see here we created my dear.

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One, two, three, four.

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And my special dear here.

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So we can also use the CP copy files and directories command here.

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Actually, let me write it right down here.

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Yeah.

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C p.

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Basically it's copies here.

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We can with this command, we can copy files and directories.

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As I said, the CP command copies, files and directories and it can be used in two different ways.

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So we can also actually let us see what we, what files we have.

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So this is our directory we will work in, This is our directory, we will, we're going to work in

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and this is our file.

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We're going to use the two CP command here.

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So, so first you will see, for example, feel my copied.

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Oops.

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Yeah.

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Copy it.

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Feel here and ls And as you can see, we created my copied field.

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So we copied this field to this here.

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So.

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We can also.

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Copy the single file or directory item one to the file or directory item two.

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So we can also do that for example.

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CPP file.

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And after that we will can also music here.

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And let's see the music.

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Music and ls here.

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And as you can see here, we copied our field file inside our music directory here.

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That's it with basic introduction of CPP command here.

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So you can also learn more information with CPP.

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And here, as you can see here, CPP is for used copy files and directories, copy source or to destination

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or multiple source to a directory.

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And mandatory arguments to long options are mandatory for short options too.

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And as you can see, we have archive attributes only backup the the reference preserve links and another

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commands here so you can also learn more about the CPP commands.

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It's actually most popular command, one of the most popular commands in Linux.

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So.

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Let's create an example with it right now.

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And firstly, let's actually use the MV command.

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M v command as the name suggests.

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Envy.

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Moves and is used for moving and renaming files in Linux.

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So the MOVE command performs both file and file renaming.

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So file moving and file renaming depending on how it is used.

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In either case, the original file name no longer exists after the operation, so env used in much the

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same way as a as a CP for example.

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Env.

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Firstly we're going to ls oops.

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Yeah.

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Env file here.

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And after that my renamed file and ls and as you can see we renamed the feel and the feel file no longer

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exists.

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Uh, in here.

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We with the commands, with E here.

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And we e we, we, we.

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This is the interactive means here.

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So before overwriting an existing file, prompt the user for confirmation.

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If the option is not specified, specified env will silently overwrite files.

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So for example, let's try with this env renamed renamed file and two old file old file.

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And and as you can see, this is specified without asking to, uh, do it or not.

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So let's actually learn about Air Command here.

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Air M here.

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Actually, let's make it a bit nicer.

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Air M.

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Here.

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This is, as the name suggests.

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Remove here.

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So the command is used to remove delete files and directories with just a single command.

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In order to do that, we're going to actually go here, clear here.

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And after that we will actually let loose.

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And as you can see, we have a file named Old file.

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Old file.

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And here, as you can see, we no longer have files here.

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So you can also use the same options.

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And in the previous env command, for example, you can also use the interactive.

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So torch some files.

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And here, as you can see, we created a new file.

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You can also come here and test and as you can see here now, it asks for do we want to remove the file?

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And and you can.

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Yes.

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And as you can see here, our file is removed.

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And we can also in the previous lecture we did learn creating links and hard links.

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Symbolic links which you will learn in more depth in next lecture.

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So I'm waiting you in.

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Next lecture.