Unix - Study Mode

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[#891] Which of the following is used for creating user's environment?

(A) su

(B) su –

(C) -su

(D) su – –

Correct Answer

(B) su –

[#892] How many types of permissions a file has in UNIX?

(A) 1

(B) 2

(C) 3

(D) 4

Correct Answer

(C) 3

[#893] In ex-mode, current line is represented by . . . . . . . .

(A) :

(B) $

(C) >

(D) .

Correct Answer

(D) .

[#894] To remove a job from the queue, which option is used with at command?

(A) -r

(B) -l

(C) -e

(D) -t

Correct Answer

(A) -r

[#895] The sort order can be reversed using . . . . . . . . option.

(A) -t

(B) -k

(C) -r

(D) -n

Correct Answer

(C) -r