Which is/are the method(s) of using vi to edit a file in read-only mode? Group of answer choices vi vi filename view filename Both (a) and (c)   Question 193 pts In the vi editor, the input mode is used to enter text into the file being edited. Which of the command(s) will go from command mode to input mode? Group of answer choices I or i or a or A o or O Both (a) and (b)

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A: ans : >

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A:

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Linux

An operating system (OS) is the software which manages hardware and resources, like CPU, storage and memory. The OS bridges the applications and hardware and makes the connections between all of your software and the hardware resources.