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UNIX: The Complete Reference, Second Edition, 2nd Edition by Richard Rosinski, Douglas Host, Kenneth Rosen, Rachel Klee

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CHAPTER 11Processes and Scheduling

The notion of a process is one of the most important aspects of the UNIX system, along with files and directories and the shell. All UNIX variants use this notion in the same way. A process, or task, is an instance of an executing program. It is important to make the distinction between a command and a process; you generate a process when you execute a command. UNIX is a multitasking system because it can run many processes at the same time. At any given time there may be tens or even hundreds or thousands of processes running on your system.

This chapter will show you how to monitor the processes you are running by using the ps command and how to terminate running processes by using the kill command, for instance, ...

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