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Asks you if you are sure. If you are not, it will return an error code. Is useful in scripts where you want a confirmation before executing.

For example if you have a destructive script in package.json (when using && the next command wont be run if current command exits with an error code):

  "clean": "sure && rm -rf dist",
$ npm run clean
Are you sure? [y/n]

Can be invoked with your own question and allowed answer:

$ sure --question "Type ok to continue." --yes "ok"
Type ok to continue.