DESCRIPTION
       sudo allows a permitted user to execute a command as
       the superuser or another user, as specified in the
       sudoers file.  The real and effective uid and gid are
       set to match those of the target user as specified in
       the passwd file and the group vector is initialized
       based on the group file (unless the -P option was
       specified).  If the invoking user is root or if the
       target user is the same as the invoking user, no pass‐
       word is required.  Otherwise, sudo requires that users
       authenticate themselves with a password by default
       (NOTE: in the default configuration this is the user’s
       password, not the root password).  Once a user has
       been authenticated, a timestamp is updated and the
       user may then use sudo without a password for a short
       period of time (15 minutes unless overridden in sudo‐
       ers).