Date: Fri, 23 Aug 2002 17:03:58 +1000 From: Edwin Groothuis <edwin@mavetju.org> To: "Christopher J. Umina" <uminac@216-164-225-145.c3-0.wth-ubr2.sbo-wth.ma.cable.rcn.com> Cc: freebsd-questions@freebsd.org Subject: Re: expr replacement Message-ID: <20020823070358.GM785@k7.mavetju> In-Reply-To: <20020823025441.O44828-100000@216-164-225-145.c3-0.wth-ubr2.sbo-wth.ma.cable.rcn.com> References: <20020823063308.GL785@k7.mavetju> <20020823025441.O44828-100000@216-164-225-145.c3-0.wth-ubr2.sbo-wth.ma.cable.rcn.com>
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On Fri, Aug 23, 2002 at 02:55:57AM -0400, Christopher J. Umina wrote:
> When I do that it doesn't get the values for some reason and it gives me a
> divide by zero error... I think it's because Perl's looking for it's own
> variables, not the ones set in the shell script. But I can't think of a
> way to put them in there. The problem with expr is that I can't get to 2
> decimal places. I really need that.
You're doing something wrong
[~] edwin@k7>totalsongs=1000
[~] edwin@k7>dirttl=123
[~] edwin@k7>percentage=`perl -e "print $dirttl / $totalsongs"`
[~] edwin@k7>echo $percentage
0.123
[~] edwin@k7>percentage=`perl -e "printf \"%0.2f\",$dirttl / $totalsongs"`
[~] edwin@k7>echo $percentage
0.12
Now what were you doing? (let me guess, single quotes)
Edwin
--
Edwin Groothuis | Personal website: http://www.MavEtJu.org
edwin@mavetju.org | Weblog: http://www.mavetju.org/weblog/weblog.php
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