A Lisp function becomes a command when its body contains, at top
level, a form that calls the special form interactive. This
form does nothing when actually executed, but its presence serves as a
flag to indicate that interactive calling is permitted. Its argument
controls the reading of arguments for an interactive call.
Please take a moment to fill out
this visitor survey You can help support this site by
visiting the advertisers that sponsor it! (only once each, though)
