shell监控web服务的多种方案

[root@XCN ~]# lsof -i :80|wc -l    #本地端口
2
[root@XCN ~]# nmap 127.0.0.1 -p 80    #远程端口

Starting Nmap 5.51 ( http://nmap.org ) at 2017-06-28 14:13 CST
Nmap scan report for localhost (127.0.0.1)
Host is up (0.000080s latency).
PORT   STATE SERVICE
80/tcp open  http

Nmap done: 1 IP address (1 host up) scanned in 0.05 seconds
[root@XCN ~]# nmap 127.0.0.1 -p 80|wc -l
8
[root@XCN ~]# nmap 127.0.0.1 -p 80|grep open|wc -l
1
[root@XCN ~]# ps -ef|grep nginx |wc -l    #进程
12
[root@XCN ~]# culr -I -s -w "%{http_code}" -o /dev/null 127.0.0.1
200      #curl
[root@XCN ~]# wget --spider --timeout=10 --tries=2 127.0.0.1 &>/dev/null
[root@XCN ~]# echo $?     #wget看返回值
0

#!/bin/bash
http_code=`culr -I -s -w "%{http_code}" -o /dev/null 127.0.0.1`
if [ $http_code -ne 200 ]
then
echo "web is erro"
else
echo "web is ok"
fi