filefinder.rb

#!/usr/bin/env ruby
require 'find'

ACCESS_DENIED = ["$Recycle.Bin", "Documents and Settings", "Program Files", "Program Files (x86)", "ProgramData", ".", ".."]

def search(name, dirname = ".")
  Find.find(dirname).find do |path|
    ! ACCESS_DENIED.include?(File.basename(path)) &&
    ! File.directory?(path) &&
    File.basename(path) == name
  end
end

print "Enter file name for search: "
result = search(gets.strip)
puts "File #{@name} exists in folder #{File.dirname result}" if result