Date: Fri, 12 Dec 2008 14:50:56 +0100 From: Christoph Mallon <christoph.mallon@gmx.de> To: rihad@mail.ru Cc: freebsd-hackers@freebsd.org Subject: Re: preventing FIFO from EOF Message-ID: <49426C40.6050802@gmx.de> In-Reply-To: <494235CA.2050101@mail.ru> References: <494235CA.2050101@mail.ru>
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rihad schrieb: > $ mkfifo /var/tmp/foo > $ buffer -i /var/tmp/foo # misc/buffer > # in another console: > $ echo hi > /var/tmp/foo > > buffer prints hi and exits. I want it to keep reading and printing > indefinitely. > > Further experimentation revealed that I need two writers: one dummy > writer that just keeps /var/tmp/foo open for writing, and the other > doing the "real work". This way buffer wouldn't exit. But how to emulate > the dummy writer? It itself needs to block on something to keep > /var/tmp/foo open. Any clean way to do this in shell? Maybe the solution > is quite simple but isn't at the tip of my tongue. Maybe "tail -f" is what you are looking for.
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