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摘要： A zombie processis a process that has terminated but has not been cleaned up yet. Itis the responsibility of the parent process to clean up its zombie children.The waitfunctions do this, too, so it’s not necessary to track whether your child process is stillexecuting before waiting for it. Suppose, 阅读全文

摘要： In fact, you should use exit codes only between zero and 127. Exit codes above 128 havea special meaning—when a process is terminated by a signal, its exit code is 128 plusthe signal number.To send a signal from a program, use the killfunction.The first parameter is the tar-get process ID.The second 阅读全文

摘要： Signalsare mechanisms for communicating with and manipulating processes in Linux.The topic of signals is a large one; here we discuss some of the most important signalsand techniques that are used for controlling processes.A signal is a special message sent to a process. Signals are asynchronous; wh 阅读全文

摘要： http://linux.chinaitlab.com/c/836989.htmlhttp://www.cnblogs.com/hnrainll/archive/2011/07/23/2114854.html 阅读全文

摘要： https://www.ibm.com/developerworks/cn/linux/l-memory/ 阅读全文