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21. The agency that sits between the user and the UNIX system is called the

A. logic
B. profile
C. shell
D. erxc
E. None of the above

Show Answer

22. Which of the following commands is used to update access and modification times of a file?

A. grep
B. wc
C. touch
D. cat
E. None of the above

Show Answer

23. Which command is used to count just the number of characters in a file?

A. wc – 1
B. wc -c
C. wc -w
D. wc -r
E. None of the above

Show Answer

24. Which of the following commands is used to list contents of directories?

A. ls
B. lp
C. dir
D. tar
E. None of the above

Show Answer

25. Which command is used to display a file contents in octal form?

A. cd
B. od
C. of
D. oct
E. None of the above

Show Answer
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