gistfile1.ruby

#all_path_breadth function will let you traverse directores from an origin and then a code block will make it more productive. 
#Below I wrote two different calls for #all_path_breadth, in the first call #virus I am creating a file named "test" at each location and in #anti_virus I am deleting that same file. 

def all_path_breadth(origin, &block)
  current_directories = []
  Dir.entries(origin).each{ |p| current_directories.push(p) if p != "." && p != ".." && File.directory?(origin+"/"+p)  }
  block.call(origin) if current_directories.empty?
    current_directories.each do |p|
      path_r = origin+"/"+p
      block.call(path_r)
      all_path_breadth(path_r, &block)
    end
end

def virus(path)
  all_path_breadth(path) do |p|
    begin
      File.open(p + "/asif", 'w') { |file| file.write("Asif") }
    rescue
      puts "permission error"
    end
  end
end

def anti_virus(path)
  all_path_breadth(path) do |p|
    _path = p + "/asif"
    File.delete(_path) if File.exist?(_path)
  end
end