shell编程之磁盘监控报警脚本

磁盘报警思路：

1. 磁盘达到90%发送报警邮件
2. 发送邮件命令格式
3. 多个报警设置
4. 把分区的信息写入文件

[root@localhost scripts]# df -h
文件系统                 容量  已用  可用 已用% 挂载点
/dev/mapper/centos-root   17G  1.9G   16G   11% /
devtmpfs                 395M     0  395M    0% /dev
tmpfs                    407M     0  407M    0% /dev/shm
tmpfs                    407M  6.7M  400M    2% /run
tmpfs                    407M     0  407M    0% /sys/fs/cgroup
/dev/sda1               1014M  146M  869M   15% /boot
tmpfs                     82M     0   82M    0% /run/user/0
/dev/sr0                 4.3G  4.3G     0  100% /mnt

[root@localhost scripts]# vim test1.sh
#!/bin/bash

echo -e "\033[31m \033[1m"
rm -rf list.txt
LIST= df -h |grep "^/dev/" >>list.txt

# 欢迎使用自动监控系统
cat << EOF
---------------------------------------------------------------
--------------welcome to use auto monitor system---------------
---------------------------------------------------------------
EOF
echo -e "\033[32m-----------------------------------------\033[0m"
echo
# 等2秒后执行下一条
sleep 2

while read line 
do
        DATE=`date '+%Y-%m-%d %H:%M:%S'`
        IP_ADDR=`ifconfig ens33|grep "broadcast"|awk '{print $2}'|cut -d: -f 2`  # 打印IP地址  
        D_Name=`echo $line|awk '{print $1,$NF"分区"}'`  # 打印以/dev/开头的文件系统和挂载点
        D_Total=`echo $line|awk '{print $2}'`   # 打印以/dev/开头的磁盘容量
        D_Avail=`echo $line|awk '{print $4}'`   # 打印以/dev/开头的磁盘可用内存
        D_Percent=`echo $line|awk '{print $5}'|sed 's/%//g'`  # 打印以/dev/开头的已用情况(%)
        if [ "$D_Percent" -ge 10 ];then
cat >email.txt <

[root@localhost scripts]# bash test1.sh 
 
---------------------------------------------------------------
--------------welcome to use auto monitor system---------------
---------------------------------------------------------------
-----------------------------------------

The /dev/mapper/centos-root /分区 has been used for more than 11%,Please check.
The /dev/sda1 /boot分区 has been used for more than 15%,Please check.
The /dev/sr0 /mnt分区 has been used for more than 100%,Please check.

-----------------------------------------
Done.

[root@localhost scripts]# cat list.txt 
/dev/mapper/centos-root   17G  1.9G   16G   11% /
/dev/sda1               1014M  146M  869M   15% /boot
/dev/sr0                 4.3G  4.3G     0  100% /mnt
[root@localhost scripts]# cat email.txt 
*********** Email ***********

通知类型：故障

服务：Disk Monitor
主机：192.168.93.110
状态：警告

日期/时间：2020-02-28 18:04:26

额外信息：
CRITICAT - DISK Monitor:/dev/sr0 /mnt分区 Used more than 100%  # 磁盘监控器的使用率