2008-02-06 bashでの計算 bash http://www.rhythm-cafe.com/shell/Grammer07.aspx http://morris.s10.xrea.com/memo/wiki.cgi?page=%A5%B7%A5%A7%A5%EB%A5%B9%A5%AF%A5%EA%A5%D7%A5%C8%A1%A7%B7%D7%BB%BB%A4%B9%A4%EB めも
