On Thu, Sep 10, 2009 at 12:45 PM, José Prous <hiena03@gmail.com> wrote:

you are putting the perl script as the name of the command
you can do something like: rawSystem "perl" ["-e","print \"testing ...\n\";" ]
this is equivalent to call in the shell: perl -e "print \"testing ...\";"
(sorry Hong I din't put reply to all in the fist mail)
On Thu, Sep 10, 2009 at 1:24 PM, Hong Yang <hyangfji@gmail.com> wrote:

I was trying to hide Perl code inside Haskell program like the following:

> module Main where

> import System.Environment (getArgs)
> import System.Cmd

> main = do
>               args <- getArgs
>               rawSystem pl args
>            where pl = "#!/usr/bin/perl\n" ++
>                           "print \"testing ...\n\";"

The program can run, but generates no output at all. Can someone tell me any other tricks which might be missing? (Do we need to use pipe here?)

Thanks,

Hong

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