shell脚本编写ping包及arp的监控并发送短信功能

#!/bin/bashNOW="`date +%Y%m%d-%H:%M:%S`"PHONES=15134567893IP=10.100.8.78GATEWAY=10.100.30.1#ping失误的短信内容content1="host is failed"#arp主机网关失误的短信内容content2="GW is failed"#ping日志路径LogFile="/tmp/ping`date "+%Y%m%d-%H-%M-%S"`.log"#ping对方主机100个包并将结果输出到日志ping -c100 $IP &> $LogFile#用if，else语句判断是否ping通，if [ "$?" == "0" ];   then    echo "$NOW $IP is ok">> $LogFileelse    echo "$NOW $IP is down">> $LogFile &/usr/bin/curl -d "phones=$PHONES&content= $NOW $IP $content" "content-type: application/x-www-form-urlencoded;charset=UTF-8" "http://短信网关:8080"fi#分隔符echo "================================" >> $LogFile#arp自己网关arp $GATEWAY &>>$LogFilenum=$(cat $LogFile |grep eth0|wc -l)  if [ "$num" == "0" ];     then     echo "$NOW $GATEWAY is down">> $LogFile &/usr/bin/curl -d "phones=$PHONES&content= $NOW $GATEWAY $content1" "content-type: application/x-www-form-urlencoded;charset=UTF-8" "http://短信网关:8080"fi