Date: Thu, 14 Aug 2014 11:49:12 -0300 (ADT) From: Andrew Hamilton-Wright <AHamiltonWright@MtA.ca> To: Rick Miller <vmiller@hostileadmin.com> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: /bin/sh script not behaving as expected Message-ID: <alpine.BSF.2.11.1408141145540.1133@qemg.org> In-Reply-To: <CAHzLAVE1E8hZvZEnDko8-7cfx6JYypezi3oxs4vKKjxDzSzZnw@mail.gmail.com> References: <CAHzLAVE1E8hZvZEnDko8-7cfx6JYypezi3oxs4vKKjxDzSzZnw@mail.gmail.com>
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On Thu, 14 Aug 2014, Rick Miller wrote:
[ ... condensed ... ]
> for d in ${disks}; do
> if [ -z "${disk}" -o "${disk}" '>' "${d}" ]; then
> : ${disk:=${d}};
> fi
> done
[ ... condensed ... ]
> # $disk; If $disk is unset/null, $disk is set to $d. If $disk is set, it
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
I believe that this is your problem -- you want to update the value
of disk whenever your if statement is true, whereas the above will
do so only when the if statement is true _and_ your variable is unset.
Is there a reason you are not simply using:
disk=${d}
as the assignment in your if statement?
Andrew.
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