Date: Mon, 15 Nov 2004 02:42:21 +0100 From: Maxime Henrion <mux@freebsd.org> To: Zoltan Frombach <tssajo@hotmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: Either I do something wrong or there is a regexp bug in sed !! Message-ID: <20041115014221.GF32839@elvis.mu.org> In-Reply-To: <BAY2-DAV8cm9t0CI76r0001ef19@hotmail.com> References: <BAY2-DAV16kTgbLYluL0001ec55@hotmail.com> <1100476106.10768.4.camel@rushlight.kf8nh.com> <BAY2-DAV8cm9t0CI76r0001ef19@hotmail.com>
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Zoltan Frombach wrote: > You are right. My mistake. This indeed works: > > sed -E -e "s/^[0-9]+/199/" conf-split > conf-split.new > > Thanks for clearing this up. For what it's worth, there is another way to write this regexp without using the -E flag. Since x+ == xx*, you can write it: "s/^[0-9][0-9]*/199/". The reason for not using -E is that it's not portable, since it's not specified by the standard. GNU sed uses -r for extended REs. Cheers, Maxime
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