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Which of the following undo a most recent single editing change?

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+1 vote
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in Unix by (67.2k points)
Which of the following undo a most recent single editing change?

(a) u

(b) U

(c) uu

(d) yy

I had been asked this question in an online interview.

This intriguing question originated from Editing Text in Vi Editor topic in portion The Vi Editor of Unix

1 Answer

+1 vote
by (1.2m points)
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Best answer
Correct answer is (a) u

To explain: To reverse the last change you made to the buffer press the ‘u’ key. This will restore the state of the buffer by undoing the most recent action taken.

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