Date: Tue, 30 Dec 2008 15:07:20 -0600 From: David Kelly <dkelly@hiwaay.net> To: Gary Kline <kline@thought.org> Cc: Roland Smith <rsmith@xs4all.nl>, FreeBSD Mailing List <freebsd-questions@freebsd.org> Subject: Re: well, blew it... sed or perl q again. Message-ID: <20081230210720.GA65861@Grumpy.DynDNS.org> In-Reply-To: <20081230205131.GA34211@thought.org> References: <20081230193111.GA32641@thought.org> <20081230201623.GB65659@slackbox.xs4all.nl> <20081230205131.GA34211@thought.org>
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On Tue, Dec 30, 2008 at 12:51:31PM -0800, Gary Kline wrote: > On Tue, Dec 30, 2008 at 09:16:23PM +0100, Roland Smith wrote: > > On Tue, Dec 30, 2008 at 11:31:14AM -0800, Gary Kline wrote: > > > The problem is that there are many, _many_ embedded > > > "<A HREF="http://whatever>; Site</A> in my hundreds, or > > > thousands, or files. I only want to delete the > > > "http://<junkfoo.com>" lines, _not_ the other Href links. > > > > > > Which would be best to use, given that a backup is critical? > > > sed or perl? > > > > IMHO, perl with the -i option to do in-place editing with backups. You > > could also use the -p option to loop over files. See perlrun(1). > > > > Roland > > > All right, then is this the right syntax. In other words, do > I need the double quotes to match the "http:" string? > > perl -pi.bak -e 'print unless "/m/http:/" || eof; close ARGV if eof' * In years past I used fetch(1) to download the day's page from a comic strip site, awk to extract the URL of the day's comic strip, and fetch again to put a copy of the comic strip in my archive. This application sounds similar. -- David Kelly N4HHE, dkelly@HiWAAY.net ======================================================================== Whom computers would destroy, they must first drive mad.
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