mjhjmtu

I have linux script that starts up my service:

/home/MyApp/MyAppStart.sh

java -jar -Dspring.profiles.active=dev $home/MyApp/MyApp.jar /tmp 2>> /dev/null >> /dev/null & echo $! > /home/MyApp/MyApp-pid

I have a systemd service that will execute the same command when we start the service:

/etc/systemd/system/MyApp.service

[Unit]
Description=My App name
After=syslog.target

[Service]
User=root
Group=root
ExecStart=java -jar -Dspring.profiles.active=dev $home/MyApp/MyApp.jar /tmp 2>> /dev/null >> /dev/null & echo $! > /home/MyApp/MyApp-pid
StandardOutput=file:/home/logs/stdout
StandardError=file:/home/logs/stderr
SuccessExitStatus=143

[Install]
WantedBy=multi-user.target

Question 1:
What I want from the command is start up the jar, print output to console and to a file, print process ID to a file.

Question 2:
I do not see any logs under /home/logs. How do I fix this?

Question 3:
MyApp.service needs to take Environment name (dev/sys/prod) as input. How do I achieve this? If this cannot be achieved, is there a work around?

Question 4:
MyAppStart.sh and MyApp.service do the same thing i.e. I can get the jar running by either executing the bash script or starting up the service.
Instead of having 2 ways to start the jar, can I use just one. I definitely need the systemd service, so can I modify the start-script to execute the service?