"Unix is simple. It just takes a genius to understand its simplicity." – Dennis Ritchie
As someone who has been shell programming for the most of their life; I really enjoyed that article. At the local ruby group I am invited to talk frequently on automation and depending on the group; remind the current generation on the sheer power they have at their fingertips.
It really is an empowering operating system. Yielding power of the user with minimal tokens and dependencies provides it's elegance and beauty in simplicity.