A classic ready-reference that's essential to a SysAdm's desk. Critics might say it's dated but almost all topics are fundamentally valid for Unices. The book's strength is explaining how to use utilities on a daily basis -- utilities that are usually at war with other author's biases. Examples: both vi and emacs are explained; sh, ksh, and csh are all here as well. The next step would be a book dedicated to your bias, like OReilly's Sed & Awk; but there's a lot of broad yet detailed information just in this book. OReilly fans will like it's style. ( )