We're not in disagreement at all. Thanks for the careful reply. It's definitely true that some spawned programs get line-by-line input (or some other buffered

We're not in disagreement at all. Thanks for the careful reply. It's definitely true that some spawned programs get line-by-line input (or some other buffered input). And some don't (e.g., bash itself, which when connected via a tty, interprets bazillions of control codes).