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From: cpcahil@virtech.UUCP (Conor P. Cahill)
Newsgroups: comp.unix.questions
Subject: Re: Bourne shell question
Keywords: pipe, logical 'or' and " pg ".
Message-ID: <1259@virtech.UUCP>
Date: 11 Oct 89 12:06:12 GMT
References: <1943@sactoh0.UUCP>
Distribution: usa
Organization: Virtual Technologies Inc
Lines: 29

In article <1943@sactoh0.UUCP>, jak@sactoh0.UUCP (Jay A. Konigsberg) writes:

> 
> When the pipe into " pg " is removed it works ok, but I would like
> to keep the pg in the script.

Your problem is that pg always exits with a 0 (at least I could not get
any non-zero exit) and therefore the stuff to the right of the  || will never
be executed.  You could do the following:

(ls -l | grep "^d" || echo "There are no subdirectories" ) | pg

or you could re-write the script so it used more than 1 line:

	ls -l | grep "^d" > /tmp/sh$$

	if [ $? = 0 ]; then
		pg /tmp/sh$$
	else
		echo "There are no ..."
	fi

	rm /tmp/sh$$

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| Conor P. Cahill     uunet!virtech!cpcahil      	703-430-9247	!
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