工作需求，要求刪除六小時之前的所有備份資料，以免硬碟爆掉

下面給出第一版：

#!/bin/bash

##create log dirPath
declare logDirPath="/home/ipm/shell/log"
if [ ! -d ${logDirPath} ];then
	mkdir ${logDirPath}
fi
declare logFilePath=${logDirPath}"/jiakuandelete.log"
if [ -f ${logFilePath} ];then
	rm -f ${logFilePath}
fi
touch ${logFilePath}
unset logDirPath

##http in data03,others in data04
declare sourceDataDirPath="/data04/dpi/bak/"
declare sourceDataDirNameArray=("dns" "mms" "ftp" "email" "voip" "rtsp" "im" "p2p" "common")
declare startTime=$(date +%Y%m%d%H%M%S)
echo "-----------------execute time:${startTime} start-----------------" >> ${logFilePath}
unset startTime

declare sixHoursAgo=$(date +%Y%m%d%H -d '-6 hours')
echo "sixHoursAgo:"${sixHoursAgo} >> ${logFilePath}
##delete six hours ago data of "http"
echo "deleteDataDirPath:rm -f /data03/dpi/bak/http/*"${sixHoursAgo}"*" >> ${logFilePath}
rm -f /data03/dpi/bak/http/*${sixHoursAgo}*
##delete "dns" "mms" "ftp" "email" "voip" "rtsp" "im" "p2p" "common" datas six hours ago
for sourceDataDirName in ${sourceDataDirNameArray[*]};do
{
	echo "deleteDataDirPath:rm -f "${sourceDataDirPath}${sourceDataDirName}"/*"${sixHoursAgo}"*" >> ${logFilePath}
	rm -f ${sourceDataDirPath}${sourceDataDirName}/*${sixHoursAgo}*
}&
done
wait
declare endTime=$(date +%Y%m%d%H%M%S)
echo "-----------------execute time:${endTime} end-----------------" >> ${logFilePath}
unset endTime
unset logFilePath
unset sourceDataDirName
unset sixHoursAgo
unset sourceDataDirNameArray
unset sourceDataDirPath
 

公司要求刪除一個月之前的備份檔案,免得把硬碟給整爆了,上伺服器看了下,居然都有3個月的備份沒有清理了,還好是sql備份,不然硬碟空間早就滿了.