openssh - run as another user

[Phillip Wu]

For security, many systems are configured so you cannot log directly as root via the initial authentication in openssh.

What is usually done is that you log onto as your normal login and once you get a interactive shell you su to root to
run the command that requires root.

Does openssh have a more elegant way of exec'ing a command as root so I can run the command
non-interactively?  I know:
Normal userid
Normal userid password
Root's password

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