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Date: Fri, 12 Dec 2008 18:12:43 +0400
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Cc: freebsd-hackers@freebsd.org
Subject: Re: preventing FIFO from EOF
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Christoph Mallon wrote:
> rihad schrieb:

> Something as simple as this:
> $ sh < /dev/null > /var/tmp/kick 2>/dev/null
> seems to block indefinitely, but exits as soon as I run
> $ buffer -i /var/tmp/foo
> (and buffer exits too) 

Strangely enough, something as stupid as this does the trick:
sh < /dev/stdout > /var/tmp/kick 2>/dev/null

i.e. reading from stdout blocks. Now sh keeps buffer block on 
/var/tmp/kick and never exit ;) I'm not sure what this does or why and 
how it works Unix-wise.