磁盤使用率超過80%自動刪除

crontab -l

/1 /usr/bin/sh /data/scripts/remove_log.sh
[root@VM_0_10_centos ~]# more /data/scripts/remove_log.sh
#!/bin/bash
echo "檢查時間:" date
dir=`du -s /data/|sort -nr | head -n 2|awk -F " " '{print $2}'<br/>disk_usage=df -h|grep /dev/vd|awk -F " " '{print $5}'|awk -F " " '{print $1}'|grep -oP '[0-9]'`
echo "當前使用空間:" $disk_usage "%"
if [ "$disk_usage" -gt "80" ];then
echo "須要刪除"
find $dir -type f -mtime +90 -name .txt|xargs rm -f
#刪除磁盤使用率前2的
else
echo "不超過 80% 無需刪除"
fi