I have a python script running in background via nohup.
It is an alarm system. Once I run the script it checks if a motion is detected.
Now i have the problem of how to disable the alarm.
Could you help me to find a good way to send a command to disable/kill the running script?
Quick and dirty method was:
Checking a txt file content: if I want to shut down the script, I modify the txt.
Something like:
if txt content is "disable":
quit
I am pretty new to python maybe you can help me.
If you're using linux/unix/macos, you can kill the script from the command line
$ ps aux | grep python
nate 16210 0.2 0.0 20156 5176 pts/2 S+ 17:02 0:00 python3
nate 16215 0.0 0.0 8044 932 pts/1 S+ 17:02 0:00 grep python
The second field is the PID of the running process, kill it with the kill command:
$ kill 16210
$ ps aux | grep python
nate 16220 0.0 0.0 8044 932 pts/1 S+ 17:02 0:00 grep python
To grab the pid automatically, you can add this to the top of your python script:
import os
pid = os.getpid()
with open('pid', 'w') as procfile:
procfile.write(pid)
Now, you can grab that pid with one line of bash:
kill -TERM $(cat pid)
replace pid with the location of the file pid
if os.path.exists(os.path.expanduser("~/disable_alarm.txt")):
#then dont sound alarm
and just put a file in your home directoy when you want it disabled ...
