阿铭Linux

shell习题-监控节点

一个网站，使用了cdn，全国各地有几十个节点。需要你写一个shell脚本来监控各个节点是否正常。

假如

1 监控的url为www.aming.com/index.php

2 源站ip为88.88.88.88

参考答案：

#!/bin/bash

url="www.aming.com/index.php"
s_ip="88.88.88.88"
curl -x $s_ip:80 $url > /tmp/source.html 2>/dev/null

for ip in `cat /tmp/ip.txt`
do
    curl -x $ip:80 $url 2>/dev/null >/tmp/$ip.html
    [ -f /tmp/$ip.diff ] && rm -f /tmp/$ip.diff
    touch /tmp/$ip.diff
    diff /tmp/source.html /tmp/$ip.html > /tmp/$ip.diff 2>/dev/null
    n=`wc -l /tmp/$ip.diff|awk '{print $1}'`
    if [ $n -lt 0 ]
    then
        echo "node $ip sth wrong."
    fi
done