crontab -l
*/1 * * * * /usr/bin/sh /data/scripts/remove_log.sh
[root@VM__010_centos ~]# more /data/scripts/remove_log.sh
#!/bin/bash
echo "检查时间:" date
dir=du -s /data/*|sort -nr | head -n 2|awk -F " " '{print $2}'
disk_usage=df -h|grep /dev/vd|awk -F " " '{print $5}'|awk -F " " '{print $1}'|grep -oP '[0-9]*'
echo "当前使用空间:" $disk_usage "%"
if [ "$disk_usage" -gt "80" ];then
echo "需要删除"
find $dir -type f -mtime +90 -name *.txt|xargs rm -f
#删除磁盘使用率前2的
else
echo "不超过 80% 无需删除"
fi
