linux启动停止脚本模板

#命令的位置
CMD="java"
#参数空格隔开
ARGS=" -jar /opt/register-1.0.0.jar"
#命令日志文件
LOG_FILE="./start.log"
#pid文件
PID_FILE="./PID"
start() {
    if [ -f $PID_FILE ]; then
        echo -n "process has run at "
        cat $PID_FILE
        exit 1
    fi
    echo "start..."
    nohup $CMD $ARGS > $LOG_FILE 2>&1 &
    pid=$!
    kill -0 $pid
    if [ $? -eq "0" ]; then
        echo "process has running at $pid"
        echo $pid > $PID_FILE
    else
        echo "process start faild!"
        pid=""
    fi
    tail -f $LOG_FILE
}
stop() {
    echo "stop..."
    if [ -f $PID_FILE ]; then
        pid=$(cat $PID_FILE)
        kill -9 $pid
        rm -f $PID_FILE
    fi
    echo "success"
}
restart() {
    stop
    start
}
status() {
    pid_file=$(readlink -f $PID_FILE)
    if [ -f $pid_file ]; then
        pid=$(cat $pid_file)
    kill -0 $pid
    if [ $? -eq "0" ]; then
        echo "process has run at $pid"
        else
            echo "pid file:$pid_file exists,but process is not running!"
        fi
    else
        echo "process is not running!"
    fi
}
case $1 in

    start)
    start
    ;;

    stop)
    stop
    ;;

    restart)
    restart
    ;;
    status)
    status
    ;;
    *)
    echo "Usage command:start|stop|restart|status"
    exit 1

esac
exit 0