DeafPig

DeafPig is a member of the Pig series along with Pig, SickPig, DeadPig, and QuinePig.

As with the other Pig languages, the only command is PIG.

The difference being your Pig is deaf, so he ignores everything you write and doesn't output any file.

Hello, World!
DeafPig has no input or output, so there is no Hello, World! program.

Cat program
DeafPig is deaf, and cannot hear your screams.

Quine
DeafPig ignores you, so the only valid quine is to not write one at all.

The Pig Series
The Pig series is a series of programming languages that are all based on Pig. The languages are Pig, SickPig, DeadPig, and QuinePig.