What punctuation does an imperative sentence use?

It really depends on its length and complexity, but a typical imperative sentence might only require a single punctuation mark -- the exclamation mark - right at the end. Take, for instance, this statement:

"I told you to get up and get dressed."

As a command, you would write: "Get up and get dressed!"

You might also add "Now!" afterwards.

An imperative sentence might be made up of a single verb, for instance:

"Fire!"

"Run!"

"Stop!"

"Shout!"

"Listen!"