Date: Thu, 10 Nov 2011 02:10:22 +0000 From: Alexey Dokuchaev <danfe@FreeBSD.org> To: Jilles Tjoelker <jilles@stack.nl> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r227366 - in head/etc: . rc.d Message-ID: <20111110021022.GC43300@FreeBSD.org> In-Reply-To: <20111109213127.GB29992@stack.nl> References: <201111082302.pA8N2Wmj053356@svn.freebsd.org> <20111109014916.GA75862@FreeBSD.org> <20111109213127.GB29992@stack.nl>
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On Wed, Nov 09, 2011 at 10:31:27PM +0100, Jilles Tjoelker wrote: > Shell patterns are different from regular expressions. I suspected something like this, yes... > In SUSv4, XCU 2.13 Pattern Matching Notation describes shell patterns. > In particular, the role of the '^' to negate a bracket expression is > instead fulfilled by '!'; a '^' directly after the '[' produces > unspecified results (so that the common RE-like behaviour is allowed). > Historically, this is because the Bourne shell interprets '^' as a > synonym for '|' (pipe) and therefore it cannot occur in a pattern > unquoted. Thanks for the explanation. Always wanted to try using ^ as pipe, but all modern shells seem to not support it anymore. ./danfe
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