Changes

An important part of learning to work with Red Hat Enterprise Linux 6, and Linux distributions in general, involves gaining proficiency in working in the shell environment. Whilst the graphical desktop environments such as GNOME and KDE included with Linux provide a user friendly interface to the operating system, in practice the shell environment provides far greater capabilities, flexibility and automation than can ever be achieved using graphical desktop tools. The shell environment also provides a means for interacting with the operating system when a desktop environment is not available; a common occurrence when working with a server based operating system such as RHEL 6 or a damaged system that will not fully boot.