Shell__Date

# 遍历出本月1号～X号的日期
#!/bin/bash

staDay=0
endDay=26
while [ ${staDay} -lt ${endDay} ]
do
    Someday=`date --date=''${staDay}' days ago' +%Y-%m-%d`
    echo ${Someday}
    staDay=$(($staDay+1))
done

exit

#同上
BegTime=2010-08-28
EndTime=2010-08-29
BegTime=`date -d "${BegTime}" +%s`
EndTiem=`date -d "${EndTime}" +%s`
Step=60*60*24

for ((i=BegTime; i<=EndTiem; i=i+Step))
do
    Someday=`date -d '1970-01-01 UTC '$i' seconds' +"%Y%m%d"`
    echo ${Someday}
done