java程序启动脚本

#!/bin/bash

appName=`ls|grep .jar$`

if [ -z $appName ]

then

    echo "Please check that this script and your jar-package is in the same directory!"

    exit

fi

killForceFlag=$

function start()

{

    count=`ps -ef |grep java|grep $appName|wc -l`

    if [ $count !=  ];then

        echo "Maybe $appName is running, please check it..."

    else

        echo "The $appName is starting..."

        nohup java -XX:+UseG1GC -XX:+HeapDumpOnOutOfMemoryError -Xms512M -Xmx4G -jar $appName > /dev/null >& &

    fi

}

function stop()

{

    appId=`ps -ef |grep java|grep $appName|awk '{print $2}'`

    if [ -z $appId ]

    then

        echo "Maybe $appName not running, please check it..."

    else

        echo -n "The $appName is stopping..."

        if [ "$killForceFlag" == "-f" ]

        then

            echo "by force"

            kill - $appId

        else

            echo

            kill $appId

        fi

    fi

}

function status()

{

    appId=`ps -ef |grep java|grep $appName|awk '{print $2}'`

    if [ -z $appId ]

    then

        echo -e "\033[31m Not running \033[0m"

    else

        echo -e "\033[32m Running [$appId] \033[0m"

    fi

}

function restart()

{

    stop

    for i in {..}

    do

        echo -n "$i "

        sleep

    done

    echo

    start

}

function usage()

{

    echo "Usage: $0 {start|stop|restart|status|stop -f}"

    echo "Example: $0 start"

    exit

}

case $ in

    start)

    start;;

    stop)

    stop;;

    restart)

    restart;;

    status)

    status;;

    *)

    usage;;

esac