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To: Dean Hollister <dean@odyssey.apana.org.au>
Cc: FreeBSD Questions <freebsd-questions@FreeBSD.ORG>
Subject: Re: bash: checking for empty string?
References: <Pine.BSF.3.96.980413104954.2098A-100000@odyssey.apana.org.au>
From: sfarrell+lists@farrell.org
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Date: 12 Apr 1998 23:36:31 -0500
In-Reply-To: Dean Hollister's message of "Mon, 13 Apr 1998 10:50:47 +0800 (WST)"
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Dean Hollister <dean@odyssey.apana.org.au> writes:

> If have a string $name. I need to check if this is blank, and if it
> is, exit the script. Any ideas?

man test(1)
man [

so, for example

if [ -z "$SOMEVAR" ]; then
	echo "SOMEVAR is undefined!"
	exit 1
fi

--

Steve Farrell


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