This question already has an answer here:
I would like to be able to pipe all bash terminal commands through a certain command (for no good reason other than to play a prank on someone). I just want to pipe the stdout of any executed command into a predetermined program without doing anything special.
If that predetermined program was
echo "Hello World"
_____________ < Hello World > ------------- \ ^__^ \ (oo)\_______ (__)\ )\/\ ||----w | || ||
How can I achieve this? (Some of the fun programs I'd like to use to play pranks on others include