shell日期的应用

#!bin/bash

del_table()
{
        #月初的第一天
        month_first_day=`date +%Y%m01`

        #要删除的日期
        last_7day_ago=`date -d "-8day" +%Y%m%d`

        #drop table
        table='t_focus_goods_coral_month_'$last_7day_ago

        if [[ $month_first_day == $last_7day_ago ]];then
        exit 0
        else
        #mysql -h 1270.0.01 -uxx -pxx -P 3307 -A focus  -e "drop table ${table}"
        echo "${table}"
        fi
}

del_table