Rating: 
Summary: Comprehensive teaching text on the system calls in unix.
Review: This book organizes and illustrates the standard system
calls in unix. Since the calls define the operating system,
this book is an excellent way to learn how unix is
structured. The examples are from SVR4 and 4.4BSD. The
code is available online and it does work. This book is an
essential reference and learning tool for anybody writing
unix code.
Rating: 
Summary: Mandatory
Review: I just can't believe there are people who actually rate this at one star! Hey, have you read at least one chapter? I don't think so! Argh!
Rating:
Summary: A Unix Programmers Bible
Review: This is an essential book for any serious or professional Unix programmer. Written in a clear paedagogical style, Professor Stevens demonstrates mastery of the subject, and his desire to pass that expertise on to the reader. The API's are illuminated by clear examples of their use. He also mentions many of the pitfalls to look out for when programming across the different flavours (BSD, SRV4) and different standards (POSIX, ANSI). It is a comprehensive tome that represents real value for money. I use this book so much I will probably need to buy another copy in a few years, if it doesn't go on permanent loan first.
Rating:
Summary: APUE is the standard for Unix/POSIX API programming
Review: Simply stated, Stevens' _APUE_ is the standard for learning the POSIX APIs for file/directory I/O and operations, processes, signals. (The only thing this book doesn't cover is threads, probably due to the fact that this book came out in 1992.) Required reading for any aspiring Unix system programmer, this book serves as both a great book for learning as well a reference. I've had this book for close to 10 years, and I still refer to it. Evrey Unix programmer should have a copy of this book.
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