scripts on unix

Seth Kurtzberg seth at cql.com
Wed Mar 14 16:58:33 EDT 2007


I compile the programs, instead of trying to run them as scripts.  Is there any reason you prefer to interpret the scripts?  I'm not saying it's not a legitimate thing to do, just wondering why you prefer to do it that way.

Seth Kurtzberg


On Wed, 14 Mar 2007 19:31:55 +0000
Frederik Eaton <frederik at a5.repetae.net> wrote:

> Hello,
> 
> What is the proper technique for creating a Haskell script on a Unix
> system?
> 
> e.g. with Perl I do
> 
> #!/bin/sh
> echo DEFANGED.348224
> exit
> #!/usr/bin/env perl
> print "hello world\n";
> 
> or
> 
> #!/usr/bin/perl
> print "hello world\n";
> 
> I tried
> 
> $ cat test
> #!/usr/bin/env runhaskell
> module Main where
> main = do
>     putStrLn "hello world"
> 
> But that doesn't work:
> 
> $ ./test
> Warning: ignoring unrecognised input `./test'
> 
> <interactive>:1:73:
>     Failed to load interface for `Main':
>       Use -v to see a list of the files searched for.
> 
> When I use "runghc" I get the same error.
> 
> If I change the first line to "-x hs" then the error is:
> 
> ghc-6.6: unrecognised flags: -x hs
> Usage: For basic information, try the `--help' option.
> 
> because the #! mechanism only allows a single argument. Thoughts?
> 
> Thanks,
> 
> Frederik
> 
> -- 
> http://ofb.net/~frederik/
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