Sudo
From Applepedia
The title given to this article is incorrect because of MediaWiki limitations. The correct title is sudo.
sudo is a simple application that allows one user to run a process as another user. Typically, it is used to allow the system administrator to run programs as root, without actually logging in as root. The users which are allowed to use sudo are listed in /etc/sudoers, and OS X places anyone listed as an Admin in the Accounts page of System Preferences in that file.

