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View the output below. As oracle user, you run the following command on your Oracle Linux 6 system: [oracle@dbhost ~ ] $ [oracle@dbhost ~] $ nice - - 10 ./myscript.sh & [1] 2735 [oracle@dbhost ~] $ nice: cannot set niceness: permission denied Why is the nice command failing?
Correct Answer: C
Explanation/Reference: Explanation: Only a privileged user may run a process with lower niceness: $ nice -n -1 nice nice: cannot set niceness: Permission denied 0 $ sudo nice -n -1 nice -1 Note: Sudo stands for either "substitute user do" or "super user do" (depending upon how you want to look at it). What sudo does is incredibly important and crucial to many Linux distributions. Effectively, sudo allows a user to run a program as another user (most often the root user).
