【Shell】删除指定时间之前的文件

工作需求，要求删除六小时之前的所有备份数据，以免把硬盘整爆

下面给出第一版：

#!/bin/bash##create log dirPathdeclare logDirPath="/home/ipm/shell/log"if [ ! -d ${logDirPath} ];thenmkdir ${logDirPath}fideclare logFilePath=${logDirPath}"/jiakuandelete.log"if [ -f ${logFilePath} ];thenrm -f ${logFilePath}fitouch ${logFilePath}unset logDirPath##http in data03,others in data04declare sourceDataDirPath="/data04/dpi/bak/"declare sourceDataDirNameArray=("dns" "mms" "ftp" "email" "voip" "rtsp" "im" "p2p" "common")declare startTime=$(date +%Y%m%d%H%M%S)echo "-----------------execute time:${startTime} start-----------------" >> ${logFilePath}unset startTimedeclare sixHoursAgo=$(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 agofor sourceDataDirName in ${sourceDataDirNameArray[*]};do{echo "deleteDataDirPath:rm -f "${sourceDataDirPath}${sourceDataDirName}"/*"${sixHoursAgo}"*" >> ${logFilePath}rm -f ${sourceDataDirPath}${sourceDataDirName}/*${sixHoursAgo}*}&donewaitdeclare endTime=$(date +%Y%m%d%H%M%S)echo "-----------------execute time:${endTime} end-----------------" >> ${logFilePath}unset endTimeunset logFilePathunset sourceDataDirNameunset sixHoursAgounset sourceDataDirNameArrayunset sourceDataDirPath

公司要求删除一个月之前的备份文件,免得把硬盘给整爆了,上服务器看了下,居然都有3个月的备份没有清理了,还好是sql备份,不然硬盘空间早就满了.

下面是我的解决办法:
cat delbak.sh

1#!/bin/sh

2location="/root/sqlbak/"

3find $location -mtime +30 -type f |xargs rm -f

ps:
location 是设置查找的目录
--mtime +30 是设置时间为30天前
-type f 这周查找的类型为文件

然后加入crontab定时来删除
crontab -l
10 4 1 * * /bin/sh /root/soft_shell/delbak.sh

设定为每个月1号晚上4点10分执行脚本.当然你也可以根据你自己的需求去整.

相同的删除方法:

1find /root/sqlbak -mtime +30 -type f -name *.gz -exec rm -f {} \;