From: jackster the jackle <johnsheahan@...>
Date: 2008-10-18T21:48:47+09:00
Subject: Re: Error Exception if script doesn't run

Tim Hunter wrote:
> ~$ ls test.rb
> test.rb
> ~$ echo $?
> 0
> ~$ ls nothere
> ls: nothere: No such file or directory
> ~$ echo $?
> 1
> 
Based on what you have described, I think I have figured out a way to 
make it work...but I still have one question.

When the following command completes successfully:
   y= `cp /home/jsmith/js.txt /home/jsmith/js2.txt`
   puts $?

$? equals 0, however if I change the path to js.txt to something that 
doesn't exist in order to make it fail, $? has a value of 256.

I thought $? should always have a value of 1 when it fails? Why is it 
256?

thanks
jack
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