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To return back to the editor from shell prompt we use _____ command.

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To return back to the editor from shell prompt we use _____ command.

(a) fg

(b) exit

(c) back

(d) fg and exit

The question was asked during a job interview.

My question is taken from Vi-Ex Mode in chapter The Vi Editor of Unix

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Right option is (d) fg and exit

Explanation: To run to your editor, we can use either fg command or exit command. It depends on the way we escape to the UNIX shell. If we had escaped using ‘:sh’ then use exit command or ctrl-D to return to the editor and if you had used ctrl-Z then use fg command to return to the editor.

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