This is some great stuff. I don't hate Unix (far from it, it makes me my living, so I have to begrudgingly like it at least a little) and there's a lot of stuff (particularly in the beginning) that seems to be old rants about long-fixed stuff (the thing was written in 1994) but for the most part, this is a hilarious skewering of the old grandadddy of OSes. I absolutely LOVE the chapter on X. This footnote is classic:

"1 We have tried to avoid paragraph-length footnotes in this book, but X has defeated
us by switching the meaning of client and server. In all other client/server relationships,
the server is the remote machine that runs the application (i.e., the server provides
services, such a database service or computation service). For some perverse
reason that's better left to the imagination, X insists on calling the program running
on the remote machine "the client." This program displays its windows on the
"window server." We're going to follow X terminology when discussing graphical
client/servers. So when you see "client" think "the remote machine where the application
is running," and when you see "server" think "the local machine that displays
output and accepts user input.""

-- Dave