linux进程环境

本章节摘自《Linux C编程一站式学习》
https://akaedu.github.io/book/
版权 © 2008, 2009 宋劲杉, 北京亚嵌教育研究中心
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with the Invariant Sections being 前言, with no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in GNU Free Documentation License Version 1.3, 3 November 2008.