Which of the following commands is not a filter?(a)man , (b) cat , (c) pg , (d) head?

Question:Which of the following commands is not a filter?(a)man , (b) cat , (c) pg , (d) head??

Answer: Ans:  manA filter is a program which can receive a flow of  data from std input, process (or filter) it and send the result to the std output.

Tags:Interview Questions, Operating System, UNIX,

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