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Path: utzoo!linus!philabs!seismo!rlgvax!guy
From: guy@rlgvax.UUCP (Guy Harris)
Newsgroups: net.unix-wizards
Subject: Re: sh bug
Message-ID: <1227@rlgvax.UUCP>
Date: Sat, 1-Oct-83 06:40:49 EDT
Article-I.D.: rlgvax.1227
Posted: Sat Oct  1 06:40:49 1983
Date-Received: Sun, 2-Oct-83 15:13:36 EDT
References: <1206@rlgvax.UUCP> <416@dciem.UUCP>
Organization: CCI Office Systems Group, Reston, VA
Lines: 38

The example

	while (something)
	do
		command <<EOF &
	This is a $test.
	EOF
	done

was incorrect; it should have read

	while (something)
	do
		command <<EOF
	This is a $test.
	EOF
	done &

This sort of loop is useful if you want to nroff a bunch of documents in
the background, the macro package has one-time actions (so you can't use
one nroff command), and you want to stick a ".po 10" command at the beginning
of each file but you see no point in 1) creating a file "/tmp/po10" or 2)
editing the documents when the next time you run them you'll only have to
take the ".po 10" out again; this is done with

for i in {the_documents}
do
	nroff {options} - $i <<EOF
.po 10
EOF
done {your_favorite_redirection}&

Unfortunately, the V7 Bourne shell, the System III Bourne shell, and the
System V Bourne shell lose on this; you either have to put the ".po 10"
into a file or run the job in the foreground.

	Guy Harris
	{seismo,mcnc,we13,brl-bmd,allegra}!rlgvax!guy