文件名称：UNIX编程常见问题解答
文件大小：41KB
文件格式：ZIP
更新时间：2014-05-11 04:28:36
UNIX编程常见问题解答
1. Process Control 1.1 Creating new processes: fork() 1.1.1 What does fork() do? 1.1.2 What's the difference between fork() and vfork()? 1.1.3 Why use _exit rather than exit in the child branch of a fork? 1.2 Environment variables 1.2.1 How can I get/set an environment variable from a program? 1.2.2 How can I read the whole environment? 1.3 How can I sleep for less than a second? 1.4 How can I get a finer-grained version of alarm()? 1.5 How can a parent and child process communicate? 1.6 How do I get rid of zombie processes? 1.6.1 What is a zombie? 1.6.2 How do I prevent them from occuring? 1.7 How do I get my program to act like a daemon? 1.8 How can I look at process in the system like ps does? 1.9 Given a pid, how can I tell if it's a running program? 1.10 What's the return value of system/pclose/waitpid? 1.11 How do I find out about a process' memory usage? 1.12 Why do processes never decrease in size? 1.13 How do I change the name of my program (as seen by `ps')? 1.14 How can I find a process' executable file? 1.14.1 So where do I put my configuration files then? 1.15 Why doesn't my process get SIGHUP when its parent dies? 1.16 How can I kill all descendents of a process?
【文件预览】：
Unix Programming Questions.txt