Easiest scripting method to merge two text files - Ruby, Python, JavaScript, Java?

Question

I have two text files, one containing HTML and the other containing URL slugs:

FILE 1 (HTML):

Answer 1

PHP is the easiest!

$firstFile = file('file1.txt');
$secodFile = file('file2.txt');

$findKey='/article/';
$output='';

if (count($firstFile)==count($secodFile)) 
                    or die('record counts dont match');

for($i=0;$i