“Unix-family operating systems share the problem that afflicted
early versions of Windows: It is difficult to wrap an established
platform in a consistent, intuitive and complete graphical
interface…”
“Linux, like other Unix derivatives, suffers from what one might
call the full-moon effect, in which a graphical operating
environment sprouts the fur and fangs of a command-line window
whenever unusual conditions arise…”
“Other attempts at visual shells for Unix-based systems… have
lacked the unified appearance and behavior that users expect after
exposure to Macintoshes or Windows PCs.”