单项选择题
A. at -l
B. jobs -l
C. sched -l
D. crontab -l
单项选择题 Which command enables a user to exit the vi editor, overwriting the existing file without prompting for confirmation?()
单项选择题 User2 is complaining that he is unable to list the contents of a directory. What is the most likely cause?()
单项选择题 After making changes to the profile for an LPAR, the administrator asks the operator to bring the LPAR back up into a running state with the new changes. Which of the following is the correct way to do this?()