Book
Martin Pool favorably reviews a book by Eric Raymond called The Art of Unix Programming. I took a look, and I think TAOUP is full of wonderful stuff. I would eagerly purchase a copy if it came out in paper.
In general, it collects stuff that you have an intuition about after working with Unix for a while, but might not have formalized anywhere. And it's just plain fun and interesting (and doesn't claim that Unix got everything right).
In other Martin news, I'm very pleased that Martin likes my code!
