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(Practice exercise 6.18, from your text) The nice value of a process can be used to alter the process's priority when it is recalculated in

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(Practice exercise 6.18, from your text) The "nice" value of a process can be used to alter the process's priority when it is recalculated in Unix and Linux systems. The "nice" command is used to set a process's nice value. Explain why some systems may allow ANY user to assign a process a nice value >-0, yet only allow the root user to assign nice values

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