Linux基本的报警监控脚本

以前刚开始学shell的时候写的基本监控脚本，不过现在直接使用nagios的插件进行监控了，发出来给大家看看。

1. 1  监控磁盘：

#!/bin/sh

used_disk=`df-h|grep /dev/sda2|awk ‘{print int($5)}‘`

if [$used_disk -gt 90 ]

then

echo "disk is more than 90%,now is$used_disk%."

fi

1. 2  监控内存：

#!/bin/sh

used_mem=`free-m|awk ‘NR==3 {print $NF}‘`

if [$used_mem -lt 1000 ]

then

echo "mem is not enough,$used_mem."

fi

1. 3  监控端口：

#!/bin/sh

port=`netstat-lntup|grep nginx|wc -l`

if [$port -ne 1 ]

then

/application/nginx/sbin/nginx

echo "Nginx is starting."

else

echo "NGINX is running."

fi

1. 4  监控URL：

#!/bin/sh

functioncheck_url(){

curl=`curl -I -s $1|head -1|awk ‘{print $2}‘`

if ["$curl" = "200" ]

then

echo "nginx is ok"

else

echo "nginx is error"

fi

}

check_url$1