Novice question

[peter beckmann]

Hi Netlanders,
i have a program that does prompted read, e.g. a user enters
Prog
and it responds with
Input>
so the user can type some commands.
Now i have a question: if the user generates input from a file or a pipe
,e.g. Prog < some.stuff, is there a way to figure out if the
input is coming NOT from the terminal. (i want to disable the
prompting in this case).

Peter Beckmann