Exercise 1. A Good First Program


You should have spent a good amount of time in Exercise 0 learning how to install a text editor, run the text editor, run Terminal, and work with both of them. If you haven’t done that, then do not go on. You will not have a good time. This is the only time I’ll start an exercise with a warning that you should not skip or get ahead of yourself.

Type the following text into a single file named ex1.rb. Ruby works best with files ending in .rb.


 1    puts "Hello World!"  2    puts "Hello Again"  3    puts "I like typing this."  4    puts "This is fun."  5    puts "Yay! Printing." ...

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