service.sh

#!/bin/bash

APPLICATION_NAME=30sek
PPP=$( pwd )

echo "$1"

echo "$2"

echo "$PPP"

if [[ "$1" == "start" ]]
then
        echo "run the start block"
        exec "./$APPLICATION_NAME" & disown

fi

if [[ "$1" == "stop" ]]
then
        echo "run the stop block"
        pkill $APPLICATION_NAME
        exit 0
fi

testservice30.service

[Unit]
Description=Test Application

[Service]
SyslogIdentifier=Test_Application
WorkingDirectory=/usr/local/bin
Type=forking
User=xabbu
Group=xabbu
ExecStart=/usr/local/bin/service.sh start 2second
ExecStop=/usr/local/bin/service.sh stop 2second-stop

[Install]
WantedBy=multi-user.target