File.open('result.txt','w') do |f| #Make new file name result.txt
    path = "C:\\Users\\eucharis\\Desktop" #Your Path
    shellscript = `dir /s #{path} |find "File(s)"` #Run Shell Command and Select Target Lines
    result = shellscript.split("File(s)").last.to_s #Split Lines to Array And Select Last Line And Convert to String
    result = result.sub(/bytes/,'').sub(/ /,'') #Remove 'bytes' and empty string in Result
    until result.scan(/,/).count.to_i <= 0 do #Loop for remove ',' in Result
        result = result.sub(/,/,'')
    end
    f.puts(result) #Write File
end