+1 for this book. It starts with diving into simple UNIX tools (echo, wc) and then moves to more complex programs such as Apache. It does not tell you the way t

+1 for this book. It starts with diving into simple UNIX tools (echo, wc) and then moves to more complex programs such as Apache. It does not tell you the way to read code, but it has several nifty techniques that any developer diving into a huge codebase might like to know.