Shell实现判断进程是否存在并重新启动脚本

爱被打了一巴掌 2022-03-20 11:20 422阅读 0赞

## 详细版： ##

#!/bin/bash
        #
    
        #调用关闭jboss进程脚本
        stopMethodServer.sh
    
        #打印出当前的jboss进程：grep jboss查询的jboss进程，grep -v "grep" 去掉grep进程
        jmsThread=`ps -ef | grep gdms | grep jboss | grep -v "grep"`
        echo $jmsThread
    
        #查询jboss进程个数：wc -l 返回行数
        count=`ps -ef | grep gdms | grep jboss | grep -v "grep" | wc -l`
        echo $count
    
        sec=7
        #开始一个循环，以判断进程是否关闭
    
        for var in 1 2
        do
         if [ $count -gt 0 ]; then
          #若进程还未关闭，则脚本sleep几秒
          echo sleep $sec second the $var time, the JMS thread is still alive
          sleep $sec
         else
          #若进程已经关闭，则跳出循环
          echo "break"
          break
         fi
        done
    
        #if [ $count -eq 0 ]; then
        # echo "nohup startMethodServer.sh &"
        # nohup startMethodServer.sh &
        #else
        # echo "It's better to check the thread!!!"
        #fi
    
        #调用启动脚本
        nohup startMethodServer.sh &

**详细zabbix版本**：

#!/bin/bash
    
    :<<\EOF
    About configuration file scan
    Script author is neo_will
    EOF
    
    #Print out the current Zabbix process: the zabbix process of the grep JBoss query, and the grep-v "grep" removes the grep process
    Port_Zabbix=` ps -ef|grep zabbix_agentd |grep -v "grep"`
    IP_Own=`ip a | grep  tap0 | grep inet | awk '{print $2}' | awk -F'/' '{print $1}'`
    port=(`ps -ef |grep 'zabbix' | awk '{print $3}'| sed -n '3p' |awk -F':' '{if($NF~/^[0-9]*$/) print $NF}' |sort |uniq`)
    echo $Port_Zabbix
    sleep 1
    #Query the number of zabbix processes: wc-l returns rows
    Count_zabbix=`ps -ef | grep zabbix_agentd | grep -v "grep" | wc -l`
        echo $Count_zabbix
    sleep 1
    #Defining variables
    Zabbix_AgentdFile="/usr/local/zabbix/sbin/zabbix_agentd"
    #Determine whether a file exists
    if [ ! -f "$Zabbix_AgentdFile" ]; then
    echo "$IP_Own File exists" >> /opt/zabbix_scanning.txt
    else
    echo "$IP_Own file does not exist" >> /opt/zabbix_scanning.txt && bash zabbix_agent3-2-0guoke666666.sh
    fi
    sleep 60
    sec=7
    #Start a loop to determine if the process is closed
    for var in 1 2
        do
         if [ $count -gt 0 ]; then
          #If the process is not closed, the script sleep for a few seconds
          echo sleep $sec second the $var time, the $IP_Own zabbix thread is still alive >> /opt/zabbix_scanning.txt
          sleep $sec
         else
          #If the process is closed, jump out of the loop
          echo "If the $IP_Own process is closed, jump out of the loop and break " >> /opt/zabbix_scanning.txt
          service zabbix_agentd restart && break
         fi
        done