How does Linux start, stop and restart the springboot jar package

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#! / bin/bash # can be replaced with your own execution program here, and other codes do not need to change the APP_NAME=mis-center-soa.jar # instructions to prompt the input parameter usage () {echo "Usage: sh my.sh [start | stop | restart | status]" exit 1} # check whether the program is running is_exist () {pid= `ps-ef | grep $APP_NAME | grep-v grep | awk'{print $2}'`# return 1 if it does not exist Return 0 if [- z "${pid}"] Then return 1 else return 0 fi} # Startup method start () {is_exist if [$?-eq "0]; then echo" ${APP_NAME} is already running. Pid=$ {pid}. " Else nohup java-jar / opt/app/spring-boot/mis-center-soa/$APP_NAME > / opt/logs/my.log 2 > & 1 & echo "${APP_NAME} start success" fi} # stop method stop () {is_exist if [$?-eq "0]; then kill-9$ pid else echo" ${APP_NAME} is not running "fi} # output running status status () {is_exist if [$?-eq" 0] Then echo "${APP_NAME} is running. Pid is ${pid} "else echo" ${APP_NAME} is NOT running. " Fi} # restart restart () {stop start} # according to the input parameters, select to execute the corresponding method. If you do not enter, execute the instructions case "$1" in "start") start;; "stop") stop;; "status") status;; "restart") restart;; *) usage;; esac

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