Unix - Study Mode

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[#721] Which of the following symbol is used for substitution command?

(A) n

(B) N

(C) s

(D) S

Correct Answer

(C) s

[#722] The PID of our login shell doesn't change.

(A) True

(B) False

Correct Answer

(B) False

[#723] Which symbol is used for evaluation of variables?

(A) $

(B) &

(C) =

(D) @

Correct Answer

(A) $

[#724] When we use ||, both the commands are executed.

(A) True

(B) False

Correct Answer

(B) False

[#725] Both the owner and group owner can be changed by . . . . . . . . call.

(A) chown

(B) chgrp

(C) chuser

(D) ch

Correct Answer

(A) chown