From: Brian Candler <B.Candler@...>
Date: 2007-04-18T14:32:24+09:00
Subject: Re: exec with string in variables?

On Tue, Apr 17, 2007 at 11:55:06PM +0900, Christian wrote:
> :perl
>     foreach $line(@methoden) {
>     system("$exe_path" .  "dti.exe -qb -t  -e$line  $dom_file
> $train_file   $modell_string" . "$line" . ".dti");
>     .................
>     }

Instead of $var write #{var}

Alternatively, let Ruby deal with the individual arguments:

  system(exe_path, "-qb", "-t", "-e" + line, dom_file, train_file,
         modell_string + line + ".dti")

This is safer as it will work even if the arguments themselves contain
spaces.