5) Another way to load external Scala code is to paste it into the repl in "raw" mode, where the code is compiled as if it were actually in a proper source file. To do this, type ":paste -raw", hit return, and then paste the contents of your source file from exercise 4. After exiting "paste" mode you should see the greeting.
The "raw" mode here is a mistake. Please use ":paste", not ":paste -raw".