在shell脚本中获取上个月最后一天的日期方法

$ date -d"`date +%Y%m01` last day" +%Y%m%d 20161231 

#! /bin/sh nowdate=`date +%Y%m01` #本月第一天 startdate=`date -d"$nowdate last month" +%Y%m%d` #上个月第一天 enddate=`date -d"$nowdate last day" +%Y%m%d` #上个月最后一天 #遍历上个月的每一天 while (( $startdate <= $enddate )) do   echo $startdate   startdate=`date -d "+1 day $startdate" +%Y%m%d` done 

./getdate.sh 20161201201612022016120320161204201612052016120620161207201612082016120920161210201612112016121220161213201612142016121520161216201612172016121820161219201612202016122120161222201612232016122420161225201612262016122720161228201612292016123020161231