From: Peter Bailey <pbailey@...>
Date: 2009-02-13T21:30:42+09:00
Subject: Re: Error handling in Ruby scripts

snex wrote:
> On Feb 12, 1:38�pm, Peter Bailey <pbai...@bna.com> wrote:
>> input file that's just bad. So, my Alchemy Ruby code fails, because
>> class Alchemy
>> � � `alchemy #{file} -t1 -Zc1 -Zm2 -b -c256 -8 -Za4 -Zd 300 300 .300 -o`
>> � end
>> end
>> --
>> Posted viahttp://www.ruby-forum.com/.
> 
> its not going to work the way you are doing it. backquotes cant tell
> if the command inside them completed "successfully" or not, they just
> run it and return STDOUT. you need to analyze the return status of the
> command, then raise an error if it failed.

OK. Thanks. Well, obviously, I've got to use backquotes or "system" in 
this case. Being a Windows command shell program, a successful result 
would be "0" in Windows, "1" or anything else if unsuccessful. Can I 
capture that as part of my "raise?"
-- 
Posted via http://www.ruby-forum.com/.