nogub python app.py & 을 입력했는데 작동 되지 않습니다

Command 'nohub' not found, did you mean:

 command 'nohup' from deb coreutils (8.32-4.1ubuntu1)

Try: sudo apt install <deb name>

[1]+ Exit 127        nohub python app.py 라는 문구가 떠요