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Let's look at Linux desktop GUI. When you install
Linux, in your environment, and you pick a
graphical interface, it will be installed with
desktop called GNOME, or KDE depending on what
you pick. And I am going through this lesson for
the GUI overview is because something that you
should know about the GUI, how it works, how it
looks like, if you get a question about it, how
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,
and it is called GNOME. And if you notice it has
two icons, one is Home, and the other one is
Trash. These two icons are created by default,
whenever you install Linux, on the top of this
window, as you see, this is the console window,
the top menu File, Machine, View, Input, Devices, Help,
that menu is for VirtualBox. This is not for
Linux desktop environment. This is for the
VirtualBox. So now let's look at our Applications.
So when you click on the Application, you will see
on the Favorites whatever you have used most
recently, it's probably going to show up in this
menu and you have a Firefox browser. And some of
the tools like how you can navigate the file
system, Application Installer, if you need some help
and open up a terminal. If you are using GUI, most
of the time you will be clicking on to the
Terminal. This Terminal allows you to run commands
in Linux GUI environment. It's just like as if you
right click on your Desktop and click on Open
Terminal. And this is the environment, this is the
actual shell that we will be using to run our
commands. Other options we have in the menu are
Accessories where you can run Calculator, Clocks,
Files, Text Editor, and Weather. If you are not
familiar with VI, which you should be, and we will
cover that in our later lectures. The Text Editor
can be used in the GUI environment to edit your
texts. Then we'll go into Documentation.
Documentation is about if you need any help with
any of the commands you can look it up. In the
Graphics we have how to change your
desktops. Internet, Office tools, some settings on
the sound and video, Sundra one have the option to
configure your system with Firewall, Print Setting,
SELinux Troubleshooter. System Tools, if you
want to change the settings of your desktop
environment, or even if you want to change some of
the configuration, you will go in here and make
the changes to the Setting option. And then you
have Other. These are some of the options that you
could use to edit the policy or if you want to
modify some JDK, which is a Java based policy
tools, but you won't be working with it as much.
Then the next option we have Places. If you want to
go to the Home, you want access to your Documents, and
Download, Music, Pictures, and Video. On the right
hand side, you'll see it shows time up here. And
then you have these three little options, and any of
these options you click on it, you will get this
setting icon. So you could pick the setting icon,
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and you will see you could change the setting of
your GUI desktop, by clicking on any of the
personalized options you have. There is Background,
Notification, Privacy, Search. And then on the
Hardware level if you want to connect some of your
external devices to the Bluetooth, Keyboard, Mouse.
Network is one of the important one, if you are not
familiar with Network, how do you configure your
static IP, you could click on it. And you could
actually go into the configuration and assign an
IP address to your machine by going to IPv4.
Again, this will come later on during our
lectures. So you Cancel this out, you go back into
the setting, and you will see all the different
options that are associated with the setting.
At the bottom you have if you want to change the
system time, some of the details, I'm sharing, if you
want to share your file system at the bottom of
the desktop, you'll see you have right here it
says one of four. This one of four means that you
have four different workspaces environment.
If you have one task running on one desktop GUI,
you could go to another workspace, then you will
be able to perform tasks on another one. So it's
just a way of organizing things. If you are a user
of Mac, you probably have seen this workspace
environment as well, where you could go from one
workspace environment to another workspace
environment. So once again, this is for the GNOME
GUI for Linux. And it looks pretty much the same
in CentOS as well as in Red Hat. So try it out,
try different options, and see how those different
options are for and just get yourself familiarized with it.
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