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pr command adds ____ lines of margin at the top and bottom.(a) 5(b) 4(c) 2(d) 1This question was posed to me in quiz.The origin of the question is Filtering Commands topic in chapter Simple Filters of Unix

Answer»

Right choice is (a) 5

The explanation is: pr command is used for PREPARING a file for printing by adding suitable headers, FOOTERS and formatted text. It ADDS five lines of margin at the top and five at the bottom. The header shows the date and time of last MODIFICATION of the file along with filename and page number.



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