UGC-NET | UGC NET CS 2017 Jan – III | Question 74

Unix command to change the case of first three lines of file “shortlist” from lower to upper
(A) $ tr ‘[a – z]’ ‘[A – Z]’ shortlist ¦ head-3
(B) $ head-3 shortlist ¦ tr ‘[a – z]’ ‘[A – Z]’
(C) $ tr head -3 shortlist ‘[A – Z]’ ‘[a – z]’
(D) $ tr shortlist head -3 ‘[a – z]’ ‘[A – Z]’


Answer: (B)

Explanation:

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