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实现自动清除日期目录shell脚本实例代码
很多时候备份通常会使用到基于日期来创建文件夹，对于这些日期文件夹下面又有很多子文件夹，对于这些日期文件整个移除，通过find结合rm或者delete显得有些力不从心。本文提供一个简单的小脚本，可以嵌入到其他脚本，也可直接调用，如下文供大家参考。
1、脚本内容
[root@SZDB ~]# more purge_datedir.sh
#!/bin/bash
# Author: Leshami
# Blog : http://blog.csdn.net/leshami
RemoveDir=/log/hotbak/physical
dt=`date+%Y%m%d-d"3 day ago"`
forsubdirin`ls $RemoveDir`;
do
if["${subdir}"/<"${dt}"];
then
rm-rf $RemoveDir/$subdir >/dev/null
echo"The directory $RemoveDir/$subdir has been removed."
fi
done
2、演示
[root@SZDB ~]# ls /log/hotbak/physical
2014120320141210201412172014122420141231201501072015011420150125tmp.sh
2014120720141214201412212014122820150104201501112015012120150128
[root@SZDB ~]# ./purge_datedir.sh
The directory/log/hotbak/physical/20141203has been removed.
The directory/log/hotbak/physical/20141207has been removed.
The directory/log/hotbak/physical/20141210has been removed.
The directory/log/hotbak/physical/20141214has been removed.
The directory/log/hotbak/physical/20141217has been removed.
The directory/log/hotbak/physical/20141221has been removed.
The directory/log/hotbak/physical/20141224has been removed.
The directory/log/hotbak/physical/20141228has been removed.
The directory/log/hotbak/physical/20141231has been removed.
The directory/log/hotbak/physical/20150104has been removed.
The directory/log/hotbak/physical/20150107has been removed.
The directory/log/hotbak/physical/20150111has been removed.
The directory/log/hotbak/physical/20150114has been removed.
The directory/log/hotbak/physical/20150121has been removed.
[root@SZDB ~]# ls /log/hotbak/physical
2015012520150128 （编辑：汽车网）
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