gistfile1.txt

# Author: pmint93
# Exercise: https://www.facebook.com/groups/718037468264021/permalink/765003373567430/
 
 
class Greeter
  def self.hello(file = '')
    yield if defined? yield
    eval open(file).read if File.exist? file
  end
end

I got it 😄 Thanks you very much 👍

Some minor changes you may have a look 😄

class Greeter
  def self.hello(file = '')
    yield if block_given?
    eval File.read(file)
  end
end