From: Paul Lutus <nospam@...>
Date: 2006-09-20T10:10:06+09:00
Subject: Re: piping input when shelling out

Caio Chassot wrote:

> 
> On 2006-09-19, at 21:51 , Daniel N wrote:
> 
>>>
>>> You could try using IO#popen  The docs are at
>>
>> http://www.ruby-doc.org/core/classes/IO.html#M001247
>>
>> Hope this is what your after.
> 
> Looks like it. Thanks a lot.
> 
> Do you know if it places the exit code in $? ?
> 
> I wonder what happens if the subprocess is killed by the system?
> 
> I guess I'll run some tests, but if you happen to know the answers,
> I'd be glad to hear them nonetheless.

The problem with File.popen() is that you want bidirectional communication
with the child process, and AFAIK that doesn't offer it -- you can either
read, or write, to the pipe, but not both.

-- 
Paul Lutus
http://www.arachnoid.com