Date: Fri, 17 Aug 2001 13:24:11 -0500 From: Lucas Bergman <lucas@slb.to> To: parv <parv_@yahoo.com> Cc: questions@freebsd.org Subject: Re: long options in shell script Message-ID: <20010817132411.D75148@comp04.prc.uic.edu> In-Reply-To: <20010817043458.A28979@moo.holy.cow>; from parv_@yahoo.com on Fri, Aug 17, 2001 at 04:34:58AM -0400 References: <20010817015201.A26996@moo.holy.cow> <20010817011800.P4232@blossom.cjclark.org> <20010817043458.A28979@moo.holy.cow>
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> i got tired of making symlinks to a script and behaving depending on
> basename.
>
> so i am searching for a way to implement long options (bourne
> shell). does anybody have short example or where to find one?
What does depending on basename have to do with long options?
Anyway, may I first suggest that your script may be outgrowing sh.
For example, Perl has 'use Getopt::Long' that does what you want.
Failing that,
if expr "$arg" : --; then
# $arg begins with '--'
fi
will detect whether $arg begins with '--'. And,
echo "$arg" | sed 's,^[^=]*=,,'
will tell you what comes after the (first) '=' sign in $arg.
Lucas
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