SuperUserDO

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 password is required.

Sudo Manual

Yes, some of you know this...some of you don't...

And then some people look at this joke and they get and idea...

A "Sudo Make Me A Sandwich Robot"...

Comic from Xkcd.