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Which signal is the ultimate kill signal? _______ -1 -3 -9 -15 Which text editor is best? _______ ed pico vi emacs matter of choice -- varies from user to user Which system call is used to create a new process? _______ open read write fork exec What default permissions are used when a regular file is created? _______ 444 600 644 664 666 Which command is used to search a file for a pattern? _______ cat touch grep find diff Which shell is best? _______ sh csh ksh bash matter of choice -- varies from user to user What is the LOGNAME for the super-user? _______ su super-user thurman root unix What command is used to reset a file named foo to zero length? _______ touch --reset foo > foo >> foo echo "" > foo What does the following command-line print? _______ $ cat | sort | uniq | wc -l hello world good-bye world 0 3 4 hello world good-bye hello world good-bye world What does the following command-line print? _______ $ cat | head -3 | tail -1 you know how time fades away you know how time fades away time fades you away
Answer all the questions.