calc_time.rb

require 'time'

wd = ["日", "月", "火", "水", "木", "金", "土"]

while line = gets
  begin
    pos = line.index('\t')
    time_text = line[0..pos]
    cmd = line[pos..line.size].strip
    time = Time.parse(time_text)
    date = time.strftime '%Y-%m-%d'
    print "#{date}(#{wd[time.wday]})\t#{time.strftime('%H:%M')}\t#{cmd}\n"
  rescue
    nil
  end
end