Odd that we think definitions are definitive. - Larry Wall

And C was good at something I like to call manipulexity, that is the manipulation of complex things. While shell was good at something else which I call whipuptitude, the aptitude for whipping things up.

[End of diatribe. We now return you to your regularly scheduled programming...]

Suppose you went back to Ada Lovelace and asked her the difference between a script and a program. She'd probably look at you funny, then say something like: Well, a script is what you give the actors, but a program is what you give the audience. That Ada was one sharp lady...