I have a python based server which i start from the terminal. This particular instance of the terminal then gives control to the program, and the program uses it as a kind of logging window, until its closed. Is this normal, or should i somehow try to start the program some other way in which it will simply show as an active process? If i close the terminal from which i started the program, the program dies with it.

Thank you

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5 Answers

Turn it to a daemon (service)
daemon --name="yourservicename" --output=log.txt sh yourscript.sh

Even old bash is using & for sending processes to background, but there is few other ways too .. but basic two are these :

1.)$~ your_command > outputfile_for_stdout & # runs your command in background, giving you only PID so you can exit that process by `kill -9 PID_of_process` # & goes at the end of row
2.)$~ your_command > outputfile_for_stdout # this will run your program normally # press Ctrl + Z then program will pause $~ bg # now your program is running in background $~ fg # now your program came back to foreground
3.)you can run terminal window under screen command so it will live until you either kill it or you reboot your machine $~ screen $~ run_all_your_commands # Ctrl + A + D will then detach this screen $~ screen -r will reattach it

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Some other useful commands :

 $~ jobs # will show you all processes running right now, but without PID $~ ps # will show you all processes for actual terminal window

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$ servicename &

Using & causes the program to run in the background, instead of blocking the shell until the program ends.

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You can also use:

start-stop-daemon -SbCv -x your_command

here is init.d script to start and stop a program in the background.

From the terminal you could also run screen or follow up you command with &. Easy way to run continuous processes.

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