IBC, which stands for Impose Bill City. It was meant to never be programmed in, even though it technically is possible.
The file will always delete itself after it is run.
|Command||What it does|
|newline||If ever it is placed into the program, it deletes system32.|
|N||Does a random instruction from brainfuck.|
|A||It installs adware onto the computer.|
There is a 0.003% chance that
will become a cat program.
If you run the N command enough, it will get the program you want.