I needed to put a line of code into a bunch of html pages. I wanted to see exactly what files got changed, so I wrote this script:

#!/usr/bin/perl
use warnings;
use strict;

use File::Find::Rule;

#find all html files in specified directory
my $dir = "/var/www/site/htdocs/";
my $rule = File::Find::Rule->file->name("*.html")->start( $dir ); 

#keep track of the changed files in a file 
open(OUTFILE,">>fixed_files.txt") || die "cant open fixed_files.txt, $
+!\n";

while ( my $html_file = $rule->match ) {
     
       rename($html_file, "$html_file.bak")    or die;
       open(my $fh_in,  '<', "$html_file.bak") or die;
       open(my $fh_out, '>', $html_file)       or die;
    
    while (<$fh_in>) {
            #add the urchin code
            if (s|</head>|<script src="http://mysite.org/__utm.js" typ
+e="text/javascript"></script>\n</head>|i) {
                print OUTFILE "$html_file: fixed Urchin code\n";
            }
        print $fh_out $_;
    }

    close($fh_in);
    close($fh_out);
}    

close OUTFILE;
[download]

Which worked like a charm. Unfortunately I came to find that I had a version control issue and some files had been updated with the code already and I didn't know it. So I ended up with a lot of pages with this:

<script src="http://mysite.org/__utm.js" type="text/javascript"></scri
+pt>
<script src="http://mysite.org/__utm.js" type="text/javascript"></scri
+pt>
</head>
[download]

I am trying to figure out how to remove the duplicate line from the files. I've tried many regexes with no success. My last idea was

            #fix the urchin code
            if (s|<script src="http://mysite.org/__utm.js" type="text/
+javascript"></script>\n<script src="http://mysite.org/__utm.js" type=
+"text/javascript"></script>|<script src="http://mysite.org/__utm.js" 
+type="text/javascript"></script>\n|i) {
                print OUTFILE "$html_file: fixed Urchin code\n";
            }
[download]

Can someone point me in a more productive direction?
Thanks!

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