#!/bin/bash
cpu=`top -b -n 1 | grep -w Cpu | awk '{print$5}'| awk -F '%' '{printf"%d",$1}'`
if [ $cpu -le 50 ]
then
echo "cpu: $((100 - cpu))%" > test.txt
mail -s "服务器紧急, CPU占用率过高！" yourmail@domail.com < test.txt
fi
mem=`top -b -n 1 | grep -w Mem | awk '{printf"%d",$6/$2*100}'`
if [ $mem -le 50 ]
then
echo "Memory: $((100 - mem))%" > test.txt
mail -s "服务器紧急，内存占用率过高！" yourmail@domail.com < test.txt
fi
httpdnum=`ps aux | grep 'httpd' | wc -l`
if [ $httpdnum -le 1 ]
then
echo "服务器紧急，apache进程结束！" > test.txt
mail -s "服务器紧急，apache进程结束！" yourmail@domail.com < test.txt
fi
tomcatnum=`ps aux | grep 'tomcat' | wc -l`
if [ $tomcatnum -le 1 ]
then
echo "服务器紧急，tomcat进程结束！" > test.txt
mail -s "服务器紧急，tomcat进程结束！" yourmail@domail.com < test.txt
fi
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#define NTP_SERVER "clock.via.net"
#define ......
