Unix - Study Mode

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[#601] . . . . . . . . option is used for taking instructions from a file.

(A) -f

(B) -e

(C) -i

(D) -n

Correct Answer

(A) -f

[#602] When two files are identical, what is the output of diff command?

(A) Files are identical

(B) Returns prompt

(C) No output

(D) Throws an error

Correct Answer

(B) Returns prompt

[#603] Which of the following command will remove the current crontab?

(A) crontab -p

(B) crontab -l

(C) crontab -e

(D) crontab -r

Correct Answer

(D) crontab -r

[#604] In a pipeline, the command on the left of | must use standard output and one on the right must use standard input.

(A) True

(B) False

Correct Answer

(A) True

[#605] We can list the jobs queued using at command by using . . . . . . . . option.

(A) -p

(B) -v

(C) -l

(D) -r

Correct Answer

(C) -l