[Haskell-cafe] Execution of external command

[Yitzchak Gale]

> so,
>
> do (stdin,stdout,stderr,ph) <- runInteractiveCommand "script param"
>    waitForProcess ph
>
> when i should read stdout? before or after waitForProcess?

If you are sure that your script will behave nicely
(or don't care if it doesn't), how about just:

(_, h, _, _) <- runInteractiveCommand "script params"
output <- hGetContents h

-Yitz