Ken Hough's Website
Underneath the desktop:
The Linux operating system and the desktop are separate entities. Linux can and often is installed without a graphical desktop (eg to operate as a dedicated file server). If the desktop were to crash (a VERY rare event), the desktop system can normally be restarted without having to re-boot the operating system. This is done by starting up a terminal screen, logging in, and then issuing a command similar to 'killall xorg'. Terminal screens can be started by pressing
Newcomers to Linux are unlikely to be comfortable working from a terminal screen (ie command line) and would not normally need to do so. Experienced Linux users often find it more convenient and even quicker to manage the operating system using a terminal screen rather than via a desktop window. The Linux command line can be a very powerful tool, much more so than is the case with the Microsoft Windows command line.
Terminal screens can also be started as windows from within the desktop manager. It is then possible to cut/paste text onto a command line, which can be useful when setting up/installing items/tasks that are described via the Internet.