From: Alex DeCaria <alex.decaria@...>
Date: 2010-02-21T21:25:19+09:00
Subject: Re: Running two versions of Ruby - Lessons Learned

Dane Jensen wrote:
> On Feb 20, 2010, at 5:50 PM, Alex DeCaria
> <alex.decaria@millersville.edu> wrote:
>> - For thos few programs that need to run under Ruby 1.8 I wrote a  
>> simple
>> ruby script that calls the Kernel.system method:
>>
>> system( "C:\Ruby\bin\rubyw.exe my_Ruby1.8_program.rb" )
> 
> You should use exec instead. system runs the script as a sub process
> with your wrapper just sitting in memory waiting for it to exit. exec
> replaces your wrapper with the called script.
> 
> -Dane

Thanks.  I was wondering what the difference  between system and exec 
was.  That helps.

--Alex
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