class DEBUGGER__::Console

def deactivate
  if history && @init_history_lines
    added_records = history.to_a[@init_history_lines .. -1]
    path = history_file
    max = CONFIG[:save_history]
    if !added_records.empty? && !path.empty?
      orig_records = read_history_file
      open(history_file, 'w'){|f|
        (orig_records + added_records).last(max).each{|line|
          if !line.start_with?(FH) && !line.strip.empty?
            f.puts line.strip
          end
        }
      }
    end
  end
end