ex14 Prompting And Passingwith extra credit commented
Exercise 14 \"Prompting And Passing\"  extra credit.
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Exercise 14: Prompting And Passing, extra credit (Change the prompt variable & add another argument)
Exercise 14: Prompting And Passing
Exercise 15: Reading Files
Exercise 15: Reading Files (STDIN.gets instead ARGV.first an so on)
Exercise 16: Reading And Writing Files
Exercise 16: Reading And Writing Files, extra credit (target.write shorter command etc...)