def get_date(prompt="What is the date of the last scan (YYYYMMDD)")
    new_regex = /A[0-9]{4}[0-1][0-9][0-3][0-9]z/
    print prompt
    gets.chomp
    if prompt != new_regex
        puts "Please enter the date in the correct format"
        print prompt
        gets.chomp
    end
end