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From: Hisham Muhammad <hisham@apple2.com>
To: Andy Spiegl <zsh.Andy@spiegl.de>,
	ZSH User List <zsh-users@sunsite.dk>
Subject: Re: how to pipe to stdout and stderr
Date: Thu, 18 Dec 2003 00:17:44 -0200
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References: <20031218001201.GA27866@spiegl.de> <1071711880.5099.9.camel@umarumohammed> <20031218020123.GA7059@spiegl.de>
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On Thursday 18 December 2003 00:01, Andy Spiegl wrote:
> > <ibraheem@umarumohammed:~/try> ls foo bar > stdout 2> stderr
>
> Thanks, but I don't want to redirect to 2 files, but pipe to 2 programs.

Use mkfifo, maybe?

hisham@aria ~/test] mkfifo err
hisham@aria ~/test] mkfifo out

hisham@aria ~/test] cat out | tac > out.txt &
hisham@aria ~/test] cat err | tr '[:lower:]' '[:upper:]' > err.txt &
hisham@aria ~/test] ls * zzz > out 2> err

hisham@aria ~/test]cat err.txt
LS: ZZZ: NO SUCH FILE OR DIRECTORY

hisham@aria ~/test] ls -1
err
err.txt
out
out.txt

hisham@aria ~/test] cat out.txt
out.txt
out
err.txt
err

-- 
Hisham Muhammad
"...and this is the first step."