Hmmm, that is so interesting. I've been banging my head on a typo from the Camel?
After reading your post, I went back and compared 
select((select(TO_CHILD), $| = 1))[0]);

[download]
between what I wrote and the book. That is exactly as it appears in the 3rd edition of the Camel under Bidirectional Communication on page 432.

Thank you for the $childnum suggestion, but where am I supposed to get that value from? The $pid results in a negative number for me. Searching for $childnum reveals only two nodes. And a search on PerlDoc turns up nothing :(

----
Thanks for your patience.
Prove your knowledge @ HLPD

In reply to Re: Re: open(TO, "|-") is a bad file name? by SavannahLion
in thread open(TO, "|-") is a bad file name? by SavannahLion

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