What is true about the su command?
What is true about the su command?
The su (substitute user) command is used to run a shell or command as another user. It allows a user to switch to a different user account, assuming the permissions of that user, typically to perform administrative tasks. Hence, the statement that it runs a shell or command as another user is correct.
The su command allows you to "substitute user" so C is correct. Thats also a good way to remember when you need to run something as a different user, siu is the acronym for substitute user. Very useful command.