On Thu, Sep 18, 2008 at 09:06:54AM -0500, Matt Zagrabelny wrote:
> On Thu, 2008-09-18 at 14:29 +0100, michael wrote:
> > I've been struggling to get this to work but I think 'sed' should be
> > able to do it if I could just get some help with the correct
> > incantation...
> >
> >
> > given a file with many strings, include many of the form
> > <a href="some url or other">www</a>
> >
> > I wish each to be transformed to
> > <a href="some url or other">some url or other</a>
> >
> > ie so literal 'www' is replaced with the actual URL for each
> > occurance...
>
> Well, it's not 'sed' (I prefer the PCRE), but this perl script ought to
> get you off the ground.
>
> #!/usr/bin/perl
>
> use strict;
>
> while (<>) {
> chomp;
> if (my ($url) = /<a href="([^"]*?)">www<\/a>/) {
> print "<a href=\"$url\">$url</a>\n";
> }
> }
That is:
perl -p -e 's/<a href="([^"]*)">www<\/a>/<a href=\"$1\">$1<\/a>/'
But this one always prints, unlike yours that only prints if it has a
hit.
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