Passing errors through pipes.

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#1009

From: Jody Winston
Date: Sat, 06 Oct 1990 19:52

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If I have program a piping information to program b.  ie.

a | b

If it is possible, how would one pass a read error from a to b
only using pipes (signals can't be used, sockets or streams can't
be used, and the error can't be imbeded in the data stream).

Jody Winston					uunet!shellbrc!jody
Shell Oil, Bellaire Research Center
3737 Bellaire Blvd.				(713) 663-2676
Hoston, TX 77001

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!shellbrc!jody
From: jody@shellbrc.UUCP (Jody Winston   )
Newsgroups: comp.unix.programmer
Subject: Passing errors through pipes.
Message-ID: <Heymq2w163w@shellbrc.UUCP>
Date: 6 Oct 90 19:52:40 GMT
Organization: Shell Oil, Bellaire Research Center
Lines: 11