自定义linux脚本用于快速jar包启动、停止、重启

启动命令：sh xxx.sh start

重启命令：sh xxx.sh restart

停止命令：sh xxx.sh stop

#!/bin/bash

#??????????????,????????

APP_NAME=bigdata_demo-0.0.1-SNAPSHOT.jar  

#????,????????

usage() {

 echo "Usage: sh ???.sh [start|stop|restart|status]"

 exit 1

}

  

#?????????

is_exist(){

 pid=`ps -ef|grep $APP_NAME|grep -v grep|awk '{print $2}' `

 #???????1,????0 

 if [ -z "${pid}" ]; then

 return 1

 else

 return 0

 fi

}

  

#????

start(){

 is_exist

 if [ $? -eq "0" ]; then

 echo "${APP_NAME} is already running. pid=${pid} ."

 else

 java -jar ${APP_NAME} >a.log &

 echo "${APP_NAME} start success"

 fi

}

  

#????

stop(){

 is_exist

 if [ $? -eq "0" ]; then

 kill -9 $pid

 else

 echo "${APP_NAME} is not running"

 fi

}

  

#??????

status(){

 is_exist

 if [ $? -eq "0" ]; then

 echo "${APP_NAME} is running. Pid is ${pid}"

 else

 echo "${APP_NAME} is NOT running."

 fi

}

  

#??

restart(){

 stop

 start

}

  

#??????,????????,??????????

case "$1" in

 "start")

 start

 ;;

 "stop")

 stop

 ;;

 "status")

 status

 ;;

 "restart")

 restart

 ;;

 *)

 usage

 ;;

esac