Shell（一）日期

#!/bin/bash
start_day=20071115
end_day=20071120
while [[ ${end_day} -gt ${start_day} ]]


do
    echo $start_day
    cmd="ddddddd"
    echo $cmd
    start_day=`date -d "+1 days ${start_day}" +%Y%m%d `
    echo $start_day
done