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Date: Sun, 06 Jun 2010 08:09:22 +0100
From: Matthew Seaman <m.seaman@infracaninophile.co.uk>
Organization: Infracaninophile
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To: Dan Nelson <dnelson@allantgroup.com>
References: <201006051513.o55FDCKj020952@mail.r-bonomi.com>	<4C0ADBCF.8040506@comclark.com>	<AANLkTimDVOQE-SrT7YO4UD3tktD81jy8px6dbbB83-Dl@mail.gmail.com>
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Cc: Brandon Gooch <jamesbrandongooch@gmail.com>, Aiza <aiza21@comclark.com>,
	"questions@freebsd.org" <questions@freebsd.org>,
	Robert Bonomi <bonomi@mail.r-bonomi.com>
Subject: Re: .sh & getopts
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On 06/06/2010 02:47:38, Dan Nelson wrote:
>> flag_count=`expr $flag_count + 1`
> /bin/sh can do math on its own:
> 
> flag_count=$((flag_count+1))

flag_count=$(( $flag_count + 1 ))

surely?  Needs to dereference the variable inside the arithmetic expansion.

	Cheers,

	Matthew

- -- 
Dr Matthew J Seaman MA, D.Phil.                   7 Priory Courtyard
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