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I have just explained you how Linux Shell actually understands that you have entered command in command

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line, and for that there was special variable called to path, and this variable holds a set of folders

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with executable files inside of those folders.

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And to each of those as a control files is available income on line.

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All right.

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Now, let me explain you how to get help about specific command.

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For that, you could use a nahles or command gold man like soul.

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And as a result of this command, I see no folding output.

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This system has been minimized by removing packages and content that are not required in a system that

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users do not look into.

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And in order to restore this content, including many pages, you can Iran comment on, minimize.

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And actually let me first try to enter command month with some argument, for example, less.

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And let's suppose that I want to get help about LSC command.

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And in such case, I get the same result.

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If you are connected to a remote vehicle, prior, etc. was Lenos, or if you're running your dole machine

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with Linux, then probably you will see this message.

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But if you're running Linux inside of the Docker container, you will see this message as well.

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All right.

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But let me throw before and to minimize command.

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Find out where was actually management located in Biehn or as being folder.

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Let's do that.

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Alas.

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Throws bin folder and.

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Yeah.

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Here is Montcalm.

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And that's why we are able to use this command here in command line.

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All right.

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Let's not enter comment on minimize and actually let's try to find this command here as well.

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Let me try to scroll up on a minimize.

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No, this comment is not available here in this list.

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But what if you want to find out the location of a specific executable file and you don't want to list

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all files in all executable folders like being SBN and so on?

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For that, you could use Anan's or Command, which which on minimize.

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And this command will show your path to specific executable file.

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In our case on MINIMIZE.

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And I see that this file is located in use or local as being folder.

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All right.

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Let's enter this comment right now on minimize.

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Could you step in order to order a complete command?

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All right, let's press enter.

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And I see here similar text that this system has been minimized and so on.

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And the installation of packages.

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Some may take some time.

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All right.

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Let's press.

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Yes.

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Here.

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And you see that we're actually downloading some packages just from Remold Your LS, and it seems that

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I need to press yes once again because additional archives will be downloaded.

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Let's do that.

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Yes.

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And press enter.

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Fetching the lorden on begging.

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Regional packages.

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It seems that adult protest was finished.

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And here I see informational message, the recommendation has been restored successfully and that means

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that now I am able to use my own command in order to get help about specific linas commands like LSD

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and so on.

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Let's clear terminal and again type Simplist month like Soul and no, I see error amendment found and

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probably this month is a good Bohl file was removed from bin folder.

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Let's check that.

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Allow Slowes been.

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And yes, now this file is absent here in this list.

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That's why I get our commandos found.

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Probably the reason for that is that I need to install additional package Gold Men DBI.

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There was information about that in that text output.

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Let's do that.

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For that, I need to use APD, get install.

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And next comes the name of the package.

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I want to install no.

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And the name of the package is Mom Slash.

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Let's press enter.

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Donald and packages from Remold ceremonies building a database of manual pages.

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And finally, process was completed.

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Endless tried to enter man comment again, terminal and enter, man.

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And now I am able to use it.

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And for example, we could enter man man and get help about Monica meant itself.

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Let's press enter.

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And here was the result.

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Actually does Lenos documentation and you are able to get help about any comment you are able to use

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inside of the Linux Shell.

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And for example, here you see information about.

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An interface to the system, reference manuals.

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And Bullo, you see description.

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You could scroll down by using space and below you may see some examples of usage of Mond command.

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For example, Mondelez will display manual page for the item.

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Gold, alas, alas, is a separate executable file.

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It is actually program that you are able to execute using a shell.

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All right.

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That's how you're able to get help about Montcalm and itself.

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Actually, you could also search for information about specific commands using command on line in Web

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browser.

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Let me quickly show you that.

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Go into a browser and the here and enter man Linux.

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And let's click on First Link, this one links month pages.

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And here you'll see that there are actually several sections of mine pages and mostly used is Section

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one that contains different user comments.

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Let's click on Section one and you'll see here all comments available in the health section of MOND

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pages.

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It is very long and does not convenient to use it like this.

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And the list right to enter comment.

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We're looking for, for example, Alaska amount here.

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And let's open up this first result, Alaska.

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And it will be opened in a separate page and this page now AC description of Alaska.

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Amend that list, directory contents.

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Here is a list of all arguments you are able to use old with this comment and so on.

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All right.

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You are able to use Ayas or online help like this or you are able to do the same here in command line.

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If you want to close this output and get back to command prompt, you need to press keep queue the stance

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for quit.

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Let's do that to you.

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And we got back to command prompt.

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Let's clear terminal and now Atlas.

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Enter Mom Ellis and get help about Alaska, man.

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And here are our results.

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Same as we saw here on this web page.

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Great.

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That's how we are able to get help about a specific command.

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Let's go this output.

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Q And next to let me explain the structure of area command and you'll understand to what this argument

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and what is optional.

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I'll see you in the next lecture, guys.

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Bye bye.