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.
Various Programs in DeafPig
DeafPig has no input or output, so there is no Hello, World! program.
DeafPig is deaf, and cannot hear your screams.
DeafPig ignores you, so the only valid quine is to not write one at all.