lots of extra credit this time, so making sure I'm familiar with it

ex15-ec.rb

@@ -0,0 +1,18 @@
+filename = ARGV.first
+
+prompt = "> "
+txt = File.new(filename)
+
+puts "Here's your file: #{filename}"
+puts txt.read
+
+puts "I'll also ask you to type it again:"
+print prompt
+file_again = STDIN.gets.chomp
+
+txt_again = File.new(file_again)
+
+puts txt_again.read
+
+txt.close
+txt_again.close