I have just explained you how Linux Shell actually understands that you have entered command in command
line, and for that there was special variable called to path, and this variable holds a set of folders
with executable files inside of those folders.
And to each of those as a control files is available income on line.
All right.
Now, let me explain you how to get help about specific command.
For that, you could use a nahles or command gold man like soul.
And as a result of this command, I see no folding output.
This system has been minimized by removing packages and content that are not required in a system that
users do not look into.
And in order to restore this content, including many pages, you can Iran comment on, minimize.
And actually let me first try to enter command month with some argument, for example, less.
And let's suppose that I want to get help about LSC command.
And in such case, I get the same result.
If you are connected to a remote vehicle, prior, etc. was Lenos, or if you're running your dole machine
with Linux, then probably you will see this message.
But if you're running Linux inside of the Docker container, you will see this message as well.
All right.
But let me throw before and to minimize command.
Find out where was actually management located in Biehn or as being folder.
Let's do that.
Alas.
Throws bin folder and.
Yeah.
Here is Montcalm.
And that's why we are able to use this command here in command line.
All right.
Let's not enter comment on minimize and actually let's try to find this command here as well.
Let me try to scroll up on a minimize.
No, this comment is not available here in this list.
But what if you want to find out the location of a specific executable file and you don't want to list
all files in all executable folders like being SBN and so on?
For that, you could use Anan's or Command, which which on minimize.
And this command will show your path to specific executable file.
In our case on MINIMIZE.
And I see that this file is located in use or local as being folder.
All right.
Let's enter this comment right now on minimize.
Could you step in order to order a complete command?
All right, let's press enter.
And I see here similar text that this system has been minimized and so on.
And the installation of packages.
Some may take some time.
All right.
Let's press.
Yes.
Here.
And you see that we're actually downloading some packages just from Remold Your LS, and it seems that
I need to press yes once again because additional archives will be downloaded.
Let's do that.
Yes.
And press enter.
Fetching the lorden on begging.
Regional packages.
It seems that adult protest was finished.
And here I see informational message, the recommendation has been restored successfully and that means
that now I am able to use my own command in order to get help about specific linas commands like LSD
and so on.
Let's clear terminal and again type Simplist month like Soul and no, I see error amendment found and
probably this month is a good Bohl file was removed from bin folder.
Let's check that.
Allow Slowes been.
And yes, now this file is absent here in this list.
That's why I get our commandos found.
Probably the reason for that is that I need to install additional package Gold Men DBI.
There was information about that in that text output.
Let's do that.
For that, I need to use APD, get install.
And next comes the name of the package.
I want to install no.
And the name of the package is Mom Slash.
Let's press enter.
Donald and packages from Remold ceremonies building a database of manual pages.
And finally, process was completed.
Endless tried to enter man comment again, terminal and enter, man.
And now I am able to use it.
And for example, we could enter man man and get help about Monica meant itself.
Let's press enter.
And here was the result.
Actually does Lenos documentation and you are able to get help about any comment you are able to use
inside of the Linux Shell.
And for example, here you see information about.
An interface to the system, reference manuals.
And Bullo, you see description.
You could scroll down by using space and below you may see some examples of usage of Mond command.
For example, Mondelez will display manual page for the item.
Gold, alas, alas, is a separate executable file.
It is actually program that you are able to execute using a shell.
All right.
That's how you're able to get help about Montcalm and itself.
Actually, you could also search for information about specific commands using command on line in Web
browser.
Let me quickly show you that.
Go into a browser and the here and enter man Linux.
And let's click on First Link, this one links month pages.
And here you'll see that there are actually several sections of mine pages and mostly used is Section
one that contains different user comments.
Let's click on Section one and you'll see here all comments available in the health section of MOND
pages.
It is very long and does not convenient to use it like this.
And the list right to enter comment.
We're looking for, for example, Alaska amount here.
And let's open up this first result, Alaska.
And it will be opened in a separate page and this page now AC description of Alaska.
Amend that list, directory contents.
Here is a list of all arguments you are able to use old with this comment and so on.
All right.
You are able to use Ayas or online help like this or you are able to do the same here in command line.
If you want to close this output and get back to command prompt, you need to press keep queue the stance
for quit.
Let's do that to you.
And we got back to command prompt.
Let's clear terminal and now Atlas.
Enter Mom Ellis and get help about Alaska, man.
And here are our results.
Same as we saw here on this web page.
Great.
That's how we are able to get help about a specific command.
Let's go this output.
Q And next to let me explain the structure of area command and you'll understand to what this argument
and what is optional.
I'll see you in the next lecture, guys.
Bye bye.