本书是被誉为UNIX编程“圣经”的Advanced Programming in the UNIX Environment一书的更新版。在本书第1版出版后的十几年中，UNIX行业已经有了巨大的变化，特别是影响UNIX编程接口的有关标准变化很大。本书在保持了前一版的风格的基础上，根据最新的标准对内容进行了修订和增补，反映了最新的技术发展。书中除了介绍UNIX文件和目录、标准I/O库、系统数据文件和信息、进程环境、进程控制、进程关系、信号、线程、线程控制、守护进程、各种I/O、进程间通信、网络IPC、伪终端等方面的内容，还在此基础上介绍了多个应用示例，包括如何创建数据库函数库以及如何与网络打印机通信等。此外，还在附录中给出了函数原型和部分习题的答案。 -The book is an updated version of a book known as the UNIX Programming Bible Advanced Programming in the UNIX-Environment. Ten years after the publication of the first edition, UNIX, industry has been tremendous changes, especially the impact the change of the relevant standards of the UNIX programming interface. Book on the basis of maintaining the style of the previous version, according to the latest standards of the contents of the amendments and additions to reflect the latest technological developments. Book in addition to the introduction of UNIX file and directory, standard I/O libraries, data files and information, the process environment, process control, process relationships, signals, threads, thread control, daemon, a variety of I/O, interprocess communication, aspects of the network IPC, pseudo terminals, also on the basis of a number of application examples, including how to create a database library and how communication with the network printer. In addition, also Appen