Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!ukc!axion!vision!chris
From: chris@vision.UUCP (Chris Davies)
Newsgroups: comp.unix.admin
Subject: Re: help remote print to bsd from sysV
Summary: Buglet in sample source pointed out
Message-ID: <1360@vision.UUCP>
Date: 9 Jan 91 17:48:53 GMT
References: <1991Jan7.173643.18472@jato.jpl.nasa.gov> <6610@biophys.zir.ethz.ch>
Reply-To: chris@vision.UUCP (Chris Davies)
Organization: VisionWare Ltd., Leeds, UK
Lines: 30

In article <6610@biophys.zir.ethz.ch> ruba@molbio.ethz.ch (Rudolf Baumann)
writes:
>I use the followin lp interface on the SysV machine:

[...]

>		cat "$file" 2>&1 | rsh BSD-machine -l print lpr -Pps || exit 1

You will get problems if the remote host "BSD-machine" is down, or not
available across the network for any reason.  We have a similar setup and I
found that it was necessary to test the result status from rsh (well, we have
rcmd on our TCP/IP implementation) and retry after eg 30 seconds if the
connection failed.  Thus you get (approximately),

:   while :
:   do
:	if cat "$MYFILE" | rcmd "$RHOST" -l "$RUSER" lp ...
:	then
:	    break
:	else
:	    sleep 60
:	fi
:   done

Chris
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