W.Richard Stevens，备受赞誉的技术作家，生前著有多种经典的传世之作，包括《UNIX网络编程》（两卷本）、《TCP/IP详解》（三卷本）和本书第1版。 尤晋元，上海交通大学计算机科学及工程系教 授、博士生导师。在科研方面，主要从事操作系统和分布对象计算技术方面的研究；在教学方面，长期承担操作系统及分布计算等课程的教学工作。主编和翻译了多本操作系统教材和参考书，包括《UNIX操作系统教程》、《UNIX高级编程技术》、《UNIX环境高级编程》和《操作系统：设计与实现》等。

    If you are an experienced C programmer with a working knowledge of UNIX, you cannot afford to be without this up-to -date tutorial on the system call interface and the most important functions found in the ANSI C library. Richard Stevens describes more than 200 system calls and functions; since he believes the best way to learn code is to read code,a brief example accompanies each description. Building upon information presented in the first 15 chapters, the author offers chapter-long examples teaching you how to create a database library, a PostScript printer driver, a modem dialer, and a program that runs other programs under a pseudo terminal. To make your analysis and understanding ofthis code even easier, and to allow you to modify it, all of the code in the book is available via UUNET. Advanced Programming in the UNIX Environment is applicable to all major UNIX releases, especially System V Release the latest release of 4.3BSD, including 386BSD. These real-world implementations allow you to more clearly understand the status of the current and future standards,including IEEE POSIX and XPG3.