如下所示的bash脚本,删除/home/abc/tmp目录下,三天前的所有文件及文件夹
#!/bin/bash
DATA_PATH=/home/abc/tmp
NUM_DAYS=3
TIME_SPAN=$[$NUM_DAYS*24*3600]
TIME_CUR=$(date -u +%s)
for file_name in $(ls $DATA_PATH); do
file_time=$(stat --printf=%Y $file_name)
cur_span=$[$TIME_CUR - $file_time]
if [ $cur_span -gt $TIME_SPAN ]; then
rm -rf $DATA_PATH/$file_name
fi
done