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

Python is great language Just have a look at these six lines of python they can merge any big text file, just now i have merged 2 text file of 10 GB each.

 o = open("E:/temp/3.txt","wb") #open for write
 for line in open("E:/temp/1.txt","rb"):
     o.write(line)
 for line in open("E:/temp/2.txt","rb"):
     o.write(line)
 o.close()