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Subject: Re: [ANNOUNCEMENT] Updated: dash-0.5.9.1-1
To: cygwin AT cygwin DOT com
References: <74aa0c8b-c268-dbd4-88b7-cda78186f321 AT SystematicSw DOT ab DOT ca> <58af73f6 DOT 57a8ca0a DOT 9eea8 DOT c76d AT mx DOT google DOT com>
From: Eric Blake <eblake AT redhat DOT com>
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Date: Fri, 24 Feb 2017 08:32:27 -0600
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From: Eric Blake <eblake AT redhat DOT com>
To: cygwin AT cygwin DOT com
Message-ID: <a9021f61-284a-2e34-8639-be8e0e03600c AT redhat DOT com>
Subject: Re: [ANNOUNCEMENT] Updated: dash-0.5.9.1-1
References: <74aa0c8b-c268-dbd4-88b7-cda78186f321 AT SystematicSw DOT ab DOT ca>
 <58af73f6 DOT 57a8ca0a DOT 9eea8 DOT c76d AT mx DOT google DOT com>
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On 02/23/2017 05:44 PM, Steven Penny wrote:
> On Thu, 23 Feb 2017 12:59:27, Brian Inglis wrote:
>> Some people may continue to need or prefer using bash in POSIX mode.
>=20
> You might know this already, but "Bash in POSIX mode" is not quite
> POSIX. For
> example, arrays are not defined by POSIX:

You may not know this, but POSIX doesn't forbid extensions. Bash in
POSIX mode does NOT cripple all extensions, merely those that are
incompatible with POSIX.  That's why so many people end up writing
#!/bin/sh scripts with bashisms, then get surprised when they break on a
different shell.

If you want a STRICT shell, Debian's posh is even better than dash at
ferreting out use of non-portable extensions.

--=20
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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