hi there

for my project I have been wrapping my systemd services using the Linux screen 
command.

You can then reattach to them from a shell and thus read all system.out (and 
also interact with them using a CLI).

http://linux.die.net/man/1/screen

to install:
sudo apt-get install screen

so, for example, I use the following to start some java code

in ./run-java.sh               
              
screen -dmS javaclient java -server -jar test-client.jar 10.0.1.5

this run the code & then detaches the CLI as a screen titled javaclient

I can then start this script using systemd

to reattach:

screen -R javaclient


to subsequently detach:

ctrl-a d


more info

https://www.mattcutts.com/blog/a-quick-tutorial-on-screen/

https://www.mattcutts.com/blog/screen-power-tips-screenrc/

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