UNIX command that will create a new shell with the effective user ID of another user (i.e. login as that user). If no user is specified, then the shell created will be for the superuser (root).

su –c will allow a single command to be run as another user, then drop back in to the normal shell.

su (option) (user) (shell_args)

SU: International Airline Code for Aeroflot (Азрофлот), current national airline of Russia, formerly national airline of the USSR.

Spanish 3rd person and 2nd person formal possessive pronoun (or possessive adjective, depending on your grammatical affiliations. Equivalent to the English word your.

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