定时检测服务，检测down掉后重启。系统检测到DMSERVER运行正常

#!/bin/bash
. /etc/init.d/functions    #引入函数库
check_count=0
# 定义检测

function wait(){
        echo -n '3秒后，执行检查URL操作.';
        for ((i=0;i<3;i++))
        do
        echo -n "."; sleep 1
        done
        echo
    }
function check_url(){
LOG_FILE="autostart.log"
#检测nginx
curtime=$(date "+%Y-%m-%d %H:%M:%S")
pnginx=`ps -ef |grep dmserver | grep -v "grep" | wc -l`
if [ $pnginx -eq 0 ]; then
   echo "$curtime 系统检测到dmserver已挂掉,启动中...." >> autostart.log;
   /etc/init.d/DmServiceDMSERVER restart #启动nginx命令
   echo "$curtime DMSERVER启动完成" >> autostart.log;
else
   echo "$curtime 系统检测到DMSERVER运行正常" >> autostart.log;
fi   
       
((check_count++)) #<==检测次数+1
    }

main(){            #<==定义主函数
    while true        #<==开启一个持续循环
    do
    check_url    #<==加载检测url的函数
    echo "--------------check count:${check_count}-------------------"
    sleep 10        #<==间歇10秒
    done
}

main        #<==调用主函数运行程序