这是我在研究生助教期间花了很大心血做的Linux操作系统的课件，范围包括GCC使用 Shell脚本基础 Linux进程、线程、信号、信号量、消息队列以内存共享以及文件系统等方面的知识。-This is my graduate student teaching assistants spent a lot of effort to do during the Linux operating system, courseware, covering the GCC based on Linux using Shell scr ipt processes, threads, signals, semaphores, message queues in shared memory and file systems of knowledge.