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Re: using tee with mkfifo
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From: |
Andreas Schwab |
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Subject: |
Re: using tee with mkfifo |
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Date: |
Fri, 27 Apr 2012 22:46:34 +0200 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.0.95 (gnu/linux) |
Peng Yu <address@hidden> writes:
> Hi,
>
> The following code hangs there for ever. I don't understand what is
> going on. Basically, I tee stdin to two named pipes and cat both
> pipes. Could anybody let me know what I am wrong? Thanks!
>
> mkfifo a.suffix b.suffix
> echo Hello World | tee a.suffix > b.suffix &
Here the shell waits for a reader for b.suffix (tee hasn't even been
started yet).
> cat a.suffix b.suffix
Here cat is waiting for a writer for a.suffix (b.suffix hasn't even been
considered yet).
Andreas.
--
Andreas Schwab, address@hidden
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"And now for something completely different."