You want to the command foo to take its input from the file foobar and send its output to the program bar. Which of the following command lines will do this?
What command changes the priority of the process running with process id of 12345 to the highest priority?
To change the priority of running process we use the renice command. Default priority is 0, highest priority is -20 and lowest priority is 19. The path of renice command is /usr/bin/renice.
Which of the following commands will write a message to the terminals of all logged in users?
An installed package is broken. In order to go back to the previous version of the same package which RPM option should be used?
