How can I run a Program, and have it continue when the remote console disconnects

Question

I want to run my Java Program on my Raspberry Pi, but it needs to continue running even if i close Putty. The Program is running on my Raspberry Pi and it is starting completely fine, but as soon as I close the console the Program stops.

I can tell it stops because after closing There wont be any Logs into the log fille (except the ones from before closing the Putty Terminal)

Currently I tried it with an sh script and this line within it:

nohup java -jar /home/pi/Programms/PantaBot/PantaBot.jar > /var/log/logPantaBot.txt 2>&1 &

and with running the sh script with sh startScript.sh&

The sh Script:

chmod 777 HandballDBFiller-1.0.0.jar
java -jar HandballDBFiller-1.0.0.jar > ~/Programme/HandballTippspiel/Log.txt

Answer 1

You can use a program capable of detaching processes such as screen or tmux.

Answer 2

Use tmux.

tmux is a terminal multiplexer. It lets you switch easily between several programs in one terminal, detach them (they keep running in the background) and reattach them to a different terminal.

You can detach the current session and attach to it when connecting through ssh again.

Expect a learning curve - it takes some time to get used to it.

Answer 3

I recommend using something like screen or tmux - they both allow you to launch "persistent" terminals that you can disconnect and reconnect to later - possibly from somewhere else, without killing processes launched from such terminals.