So, we now have a Linux system that is up and running and ready for further use in this
course.
So, let's learn a bit about where we do our work, to start with the bash shell.
The shell is how we call the environment where the user interfaces with the operating system.
And shell can be a command-line shell, where bash is the default command-line shell.
You can also have a graphical shell, and the default graphical shell on RHEL 10 is GNOME.
It has been the default forever, and it will be the default for a long time, pretty likely.
From a graphical shell, a terminal window running bash can be started, and the bash
shell provides many features to make working with the shell easier.
Now these features are important, because we are going to work in the bash shell throughout
this course.
There are command-line completion, where you press the tab key to automatically complete
your commands, history, which will remember previously used commands, variables that make
it easy to store system settings, and there are scripts that allow you to automate tasks.
Before a user gets access to the shell, the user must authenticate.
As we have already seen, a user with administrative privileges is typically created while installing
RHEL.
And on a non-graphical system, the user will see a text prompt asking for the username
and password.
And in a graphical shell, the user can select the user account and the password.
Now let me demonstrate.
So this is what the GDM looks like.
GDM is a GNOME display manager.
It's part of the GNOME graphical interface that allows you to log in.
And as you can see, I see my current user account, I'm clicking it, and then I'm entering
the password, and I have access to the graphical shell.
In the next video, you'll learn more about how to do essential things in this graphical
shell.