Deleting a directory is similar to deleting a file:
Dir.unlink and Dir.rmdir perform exactly the same function.
You can use absolute pathnames.
If a directory isn't empty, you cannot delete it with a call to Dir.delete.
You need to iterate through each of the subdirectories and files and remove them.
Or you can use the rm_f method of the FileUtils library that comes with Ruby:
require 'fileutils' FileUtils.rm_f(directory_name)