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Linux file system. Now what is a file system? A

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file system is basically, think of as a closet as a

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shelf. When you come in, you change, you put your

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T shirts in one shelf, you put your socks in the

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other. So there is a systematic way in your

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closet, where you put all your stuff. The file

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system in an operating system works exactly the

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same. The operating system has file system where

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command files go to a different folder, peripheral

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devices or files go to a different folder, all the

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programs and applications that you install go to a

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different folder. So it will be easier, much

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easier for operating system to access those files.

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Now, operating system stores data on a disk drives

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using a structure called file system,consisting of

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files, directories, and information needed to

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access and locate them. There are many different

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types of file system. In general improvements have

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been made to file system with new releases of

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operating system, and each new file system has

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been given a different name. In Linux, we have

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file system called ext3, ext4, XFS,

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and in Windows, it's the file system called

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NTFS, or FAT. Linux file system stores information

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in hierarchy of directories and files. Meaning,

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there is a first folder, one folder, which is slash

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a root filesystem. And every other file is created

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within the first file or directory. The file

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system structure in Linux actually looks like

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this. As I mentioned, the first file system or

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first folder always start with slash, which is

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also referred to as root. Now please keep in mind

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slash root is not as just slash. Slash is the

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first directory structure where you have to start

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your, navigating your file system. And then

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underneath it has different folders as you could

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see, it has bin, boot, dev, etc. So this is the way

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Linux structure, its file system. Or if we compare

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this Linux file system with Windows, you will see

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the Windows has also something like that similar

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structure, but they have given a different name.

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So let's look at the Windows file system. If you

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go to Start, and you go to Computer, you're going

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to see your C drive. In this case, our C drive,

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when we refer to our file system structure diagram

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in the background, you'll see why here, that this

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one has slash. So in Windows, it starts with C. So

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C or slash is the same, but C and Windows and slash

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and Linux. So when you double click on Windows C

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drive, you're going to see all those different

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folders. Now why do we have all those different

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folders, why not just one folder, then it will be

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so hard for the operating system to find the right

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file or directory that you're looking for. So for

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example, like apps and Dell, then you have Intel

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folder, all the Intel chip related files are in

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that directory, the logs, Program Files, Program

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Files or the folder when you install a third party

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applications. That's where they are downloaded or

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the files get. Then we have another one, Program

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Files(x86). That's where the 32 bit related

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directories are created. And Users that are the

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user directories. If you click on it, you'll see

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my directory right here as well. And then of

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course, the windows, anything that related to

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Windows, so that's why it is predefined by Windows

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that every time we create a file or every time we

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install a program automatically, it gets installed

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into these files and directories. So just like

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that when we come here, you'll see here, this is

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the file system the same way in Linux, the file

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system is created but of course the naming

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convention is different. Now let's take a look at

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our Linux file system. So I'm going to open up

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[No audio]

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Oracle VirtualBox.

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[No audio]

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So let's go to the file system.

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So as I said in the Linux file system, it starts

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with the root. So when you do cd slash, which is

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root slash, hit enter, and then you do ls -l.

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Here you have a list of all the directories and

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files that are starting with slash. You could go

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into each of the directories and you could see how

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the file system is structured. So I hope you guys

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got the gist of how the file system looks like and

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why do we have file system in our operating system.

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[No audio]