Linux is built with a certain set of unifying principles in
mind. Understanding these principles is very helpful in
understanding how the system works as a whole. They are known as
the "Linux Way", which is derived from the philosophy behind the
UNIX system. The Linux Way can be summarized as: Most traits of
Linux are a consequence of these principles. In accordance with
them, a Linux system is built out of small, replaceable
components. We will examine the most important of them in more
detail. Those are: the boot loader, the kernel, the shell, the X
window server, the window manager and the desktop environment.
After that, we will have a look at the file system in Linux.
Finally, we will discuss the security of a computer running
Linux. This is the part of the system that is executed first.
When you have only one operating system installed, it simply
loads the kernel. If you happen to have multiple operating
systems or multiple versions of the Linux kernel installed, it
allows you to choose which one you wa