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advanced-linux-programming.pdf
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详细说明： ARUNNING INSTANCE OF A PROGRAM IS CALLED A PROCESS. If you have two terminal windows showing on your screen, then you are probably running the same terminal program twice—you have two terminal processes. Each terminal window is probably running a shell; each running shell is another process.When you invoke a command from a shell, the corresponding program is executed in a new process; the shell process resumes when that process completes. Advanced programmers often use multiple cooperating processes in a single application to en able the application to do more than one thing at once, to increase application robustness, and to make use of already-existing programs. Most of the process manipulation functions described in this chapter are similar to those on other UNIX systems. Most are declared in the header file ; check the man page for each function to be sure. ...展开收缩
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