#!/bin/bashSTART=$(date +%s);hello="20160911 00"world="20160911 03"datebegin=`date -d "$hello" "+%Y%m%d%H"`dateend=`date -d "$world" "+%Y%m%d%H"`while [ "$datebegin" -le "$dateend" ]doecho $datebeginecho $datebegin >> test.txtmiddle=" "before=`echo $datebegin | cut -c 1-8`after=`echo $datebegin | cut -c 9-10`tmp="$before$middle$after"datebegin=`date -d "$tmp +1 hour " +%Y%m%d%H`doneEND=$(date +%s);echo $((END-START)) | awk ‘{print int($1/3600)":"int($1%3600/60)":"int($1%3600%60)}‘