SSH quick reference for running processes in the background

ssh_background_process.md

1. SSH with local X (any X window should be run locally rather than remotely)
   • ssh -X user@instance
2. Leave a process running even when you leave the SSH session
   • Make your script executable with chmod +x main.py
   • 2 possible instructions:
     • If console output does not matter (console output is still available in nohup.out but only if execution is finished successfully):
       • nohup python main.py &
     • If output must be saved even if you interrupt the execution:
       • (bash) nohup python -u main.py > output.log &
       • (zsh) nohup python -u main.py > output.log &!
   • exit

References:

• https://unix.stackexchange.com/questions/479/keep-processes-running-after-ssh-session-disconnects
• https://janakiev.com/blog/python-background/