project of note: Sudo


Some of the benefits of Sudo:

And some of the more advanced benefits:

[gives users] permission to do certain tasks as a different user (which doesn't even have to be root) without giving them complete access to that user or root. On server systems or multiuser systems with different people working on different tasks not everyone need complete access to the system, one hands out only the amount of access that is required for the task.

-- source