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Message-ID: <53A0944A.8080403@redhat.com>
Date: Tue, 17 Jun 2014 13:17:30 -0600
From: Eric Blake <eblake@redhat.com>
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To: cygwin@cygwin.com
Subject: Re: Change PS1 when running as administrator
References: <1402994703.51470.YahooMailNeo@web172206.mail.ir2.yahoo.com> <53A06B0D.9050806@raelity.com> <1195111819.20140617203419@yandex.ru> <53A078BD.9020402@raelity.com>
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On 06/17/2014 11:19 AM, Ernie Rael wrote:
> On 6/17/2014 9:34 AM, Andrey Repin wrote:
>=20
>>>       [[ $(id -G) =3D~ \b544\b ]]
>>> was suggested (the suggestion used symbolic name instead of a number and
>>> didn't use word boundary). Seems like word boundary is needed, but I
>>> couldn't get this to work. Are the regex boundary matchers not
>>> supported  by bash =3D~ operator?
>> I don't think bash equivalent of test implements Perl RE.
>> Neither the base test implementation, to that extent.
>=20
> I thought, perhaps incorrectly, that \b has been around forever and is
> posix.

Forever in Linux, but not required by POSIX and not present in BSD (from
which Cygwin inherits its regex implementation).

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


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