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From: "C. Woody Butler" <charles DOT butlerjr AT constellation DOT com>
Subject: Re: trying to get the process id for a spawned process to wait for it
Date: Wed, 18 May 2011 18:05:24 +0000 (UTC)
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Ryan Johnson <ryanjohn <at> ece.cmu.edu> writes:

> 
> What shell are you using? In bash, at least, the above won't work -- you 
> want Jobs=((Jobs+1))
> 
> Just to be sure, you've confirmed that the problem arises because the 
> if-then body runs with an empty $PID? Do the two echo commands fire?
> 
> Ryan
> 
> 

bash

the $Jobs thing works fine (surprised me actually 
but I went with it - I'm not a beginner programmer 
but I'm fairly new to BASH scripting, and this was my 
first attempt at doing math  ).

yes, the echoes fire, and the $PID is blank. 
that echo just says "is the process".

BUT --

And I just ran it to make sure I wasn't crazy, 
and apparently I was because now it's working 
beautifully. And unless the CYGWIN gremlin changed 
it it's still the same code I posted.

And it still adds right.

Sooo - thanks. I'm crazy, it works as advertised, 
and all's right with the world. 

Yay.

--woody



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