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Let's look at Linux desktop GUI. When you install

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Linux, in your environment, and you pick a

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graphical interface, it will be installed with

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desktop called GNOME, or KDE depending on what

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you pick. And I am going through this lesson for

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the GUI overview is because something that you

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should know about the GUI, how it works, how it

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looks like, if you get a question about it, how

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you need to answer it. So let's look at our GUI.

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So I have desktop GUI here, which is Linux based,

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and it is called GNOME. And if you notice it has

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two icons, one is Home, and the other one is

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Trash. These two icons are created by default,

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whenever you install Linux, on the top of this

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window, as you see, this is the console window,

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the top menu File, Machine, View, Input, Devices, Help,

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that menu is for VirtualBox. This is not for

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Linux desktop environment. This is for the

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VirtualBox. So now let's look at our Applications.

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So when you click on the Application, you will see

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on the Favorites whatever you have used most

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recently, it's probably going to show up in this

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menu and you have a Firefox browser. And some of

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the tools like how you can navigate the file

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system, Application Installer, if you need some help

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and open up a terminal. If you are using GUI, most

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of the time you will be clicking on to the

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Terminal. This Terminal allows you to run commands

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in Linux GUI environment. It's just like as if you

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right click on your Desktop and click on Open

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Terminal. And this is the environment, this is the

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actual shell that we will be using to run our

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commands. Other options we have in the menu are

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Accessories where you can run Calculator, Clocks,

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Files, Text Editor, and Weather. If you are not

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familiar with VI, which you should be, and we will

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cover that in our later lectures. The Text Editor

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can be used in the GUI environment to edit your

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texts. Then we'll go into Documentation.

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Documentation is about if you need any help with

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any of the commands you can look it up. In the

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Graphics we have how to change your

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desktops. Internet, Office tools, some settings on

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the sound and video, Sundra one have the option to

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configure your system with Firewall, Print Setting,

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SELinux Troubleshooter. System Tools, if you

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want to change the settings of your desktop

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environment, or even if you want to change some of

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the configuration, you will go in here and make

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the changes to the Setting option. And then you

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have Other. These are some of the options that you

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could use to edit the policy or if you want to

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modify some JDK, which is a Java based policy

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tools, but you won't be working with it as much.

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Then the next option we have Places. If you want to

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go to the Home, you want access to your Documents, and

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Download, Music, Pictures, and Video. On the right

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hand side, you'll see it shows time up here. And

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then you have these three little options, and any of

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these options you click on it, you will get this

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setting icon. So you could pick the setting icon,

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and you will see you could change the setting of

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your GUI desktop, by clicking on any of the

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personalized options you have. There is Background,

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Notification, Privacy, Search. And then on the

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Hardware level if you want to connect some of your

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external devices to the Bluetooth, Keyboard, Mouse.

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Network is one of the important one, if you are not

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familiar with Network, how do you configure your

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static IP, you could click on it. And you could

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actually go into the configuration and assign an

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IP address to your machine by going to IPv4.

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Again, this will come later on during our

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lectures. So you Cancel this out, you go back into

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the setting, and you will see all the different

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options that are associated with the setting.

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At the bottom you have if you want to change the

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system time, some of the details, I'm sharing, if you

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want to share your file system at the bottom of

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the desktop, you'll see you have right here it

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says one of four. This one of four means that you

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have four different workspaces environment.

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If you have one task running on one desktop GUI,

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you could go to another workspace, then you will

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be able to perform tasks on another one. So it's

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just a way of organizing things. If you are a user

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of Mac, you probably have seen this workspace

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environment as well, where you could go from one

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workspace environment to another workspace

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environment. So once again, this is for the GNOME

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GUI for Linux. And it looks pretty much the same

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in CentOS as well as in Red Hat. So try it out,

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try different options, and see how those different

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options are for and just get yourself familiarized with it.

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