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System Commands, End Term

May 2022 term, 7 Aug 2022, Set QPB1

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Question 1

+4−0Single correct

Select one option

A.
All lines having the character sequence ^ followed by $ will be deleted.
B.
All the lines having the first character as $ will be deleted.
C.
All empty lines (no characters in the line) will be deleted
D.
All lines having only spaces will be deleted.

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