终止正在运行的Python应用程序

Question

I have a Raspberry Pi running Raspbian controlling a home automation system as part of a project for college. To control this I'm using an ASP.NET web app to fire SSH commands at the Pi to start various Python apps. I need a way to terminate another app over SSH before starting a new one.

For example:

a.py and b.py are running

User selects c.py from the web app

a.py must be stopped before starting c.py leaving b.py and c.py running.

Thanks

Jake

Answer 1

find the PID (Process ID) of your python script using the command (should be the second column)

ps -ef | grep python
kill <PID found previously>
kill -9 <PID found previously>

If the program is still running then it means you are using the wrong PID Nothing can stop a kill -9 command :-)

Answer 2

If you want to kill every running instance of python:

$ kill `pidof python`

If you want to kill every running instance of a specific python script:

$ kill `pidof -x myscript.py`
or
$ pkill myscript.py
or
$ killall glances

It's generally not advisable to send SIGKILL to a running program ( kill -9 ). SIGTERM is usually sufficient unless the program is frozen. All the above commands send SIGTERM.