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in today's short class we're going to take a look at some example perl code and we're going to write a web crawler using perl this is going to be just a very simple piece of code that's going to go to a website download the raw html iterate through that html and find the urls and retrieve those urls and store them as a file we're going to create a series of files and in our initial iteration we're going to choose just about 10 or so websites just so that we get to the end and we don't download everything if you want to play along at home you can of course download as many websites as you have disk space for so we'll choose websites at random and what we're going to write is a series of html files numbered 0.html1.html 2.html and so on and then a map file that contains the number and the original url so let's get started with the perl code so we're going to write a program called web crawler dot pl here's our web crawler we're going to start as we've done before with what's called the...