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Which command is used in bash and Korn shells to display the previously used commands?

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Which command is used in bash and Korn shells to display the previously used commands?

(a) his

(b) history

(c) sh

(d) ps

I got this question in unit test.

My doubt stems from Shell Variables in chapter Customizing the Environment & More File Attributes of Unix

1 Answer

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Best answer
Right option is (b) history

To explain I would say: Bash and Korn support a versatile history feature that treats a previous command as an event and associates it with an event number. The history command displays the history list showing the event number of every previously executed command.

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