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Date:	Sat, 31 Oct 1998 16:25:09 PDT
From:	"Gregory W. Smith" <gsmith@well.com >
Reply-To:	scoug-programming@scoug.com
To:	< "SCOUG-Programming@scoug.com" > SCOUG-Programming@scoug.com >
Subject:	SCOUG-Programming: Pipes and REXX

Content Type: text/plain

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Is there an elegant way to invoke a command from within REXX and have
it redirect the output to the standard input? Right now I am using
pipes as in the example:

bar | blatz

The program bar.exe wites to standard out which is piped into
blatz.cmd. The main processing loop in blatz.cmd looks something like:

while lines() >
linetoprocess = linein()
...
end

I can almost do what I want if I use a temporary file. I start bar.exe
in the REXX script and put the output in a file and then read from the
file:

'@bar >sometempfile'
while lines('sometempfile') >0
linetoprocess = lienin('soemtempfile')
.....
end

Is there and easy way to run bar.exe and have it write to what the
REXX .cmd program sees as input. Making a scratch file and cleaning up
afterward is not much of a problem. But finding all of the linein(),
charin(), and other IO statements in a long program is a pain.
===============================================================
Gregory W. Smith (WD9GAY) gsmith@well.com
finger gsmith@well.com for PGP public key
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