Unix - Study Mode

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[#266] Which built-in variable is used by the awk to specify the line numbers?

(A) AR

(B) NR

(C) $$

(D) $?

Correct Answer

(B) NR

[#267] POSIX is a set of standards specified for establishing compatibility between operating systems.

(A) True

(B) False

Correct Answer

(A) True

[#268] Which command is used for killing a line?

(A) ctrl-k

(B) del

(C) esc

(D) ctrl-u

Correct Answer

(D) ctrl-u

[#269] Which option is used with pr command for printing multi-columnar output?

(A) -p

(B) -k

(C) -d

(D) -pr

Correct Answer

(B) -k

[#270] Which control unlocks the keyboard?

(A) ctrl-u

(B) ctrl-c

(C) ctrl-z

(D) ctrl-q

Correct Answer

(D) ctrl-q