[Haskell-cafe] using an external application

[Bulat Ziganshin]

Hello Petr,

Friday, November 2, 2007, 11:17:23 AM, you wrote:

>           o1 <- readFile "output.txt"

add "return $! length o1" here to evaluate whole list

>           System.Cmd.system "echo bye >output.txt" -- the second call to



-- 
Best regards,
 Bulat                            mailto:Bulat.Ziganshin at gmail.com