I need to track and launch few BASH scripts as process (if they for some reason crashed or etc). So i was trying as below: but not working
def ps(self, command):
process = subprocess.Popen(['/bin/bash'], shell=False, stdin=subprocess.PIPE, stdout=subprocess.PIPE)
process.stdin.write(command + '\n')
process.stdout.readline()
ps("/var/tmp/KernelbootRun.sh")
ps("ps aux | grep processCreator.py | awk '{print $2}' | xargs kill -9")
None is working.
How about running it through a subshell with disown:
import os
def ps(self, command):
os.system(command + " & disown")
ps("/var/tmp/KernelbootRun.sh")
ps("ps aux | grep processCreator.py | awk '{print $2}' | xargs kill -9")
Note that sometimes you have to use a null input and output to keep your process active when the terminal is closed:
ps("</dev/null /var/tmp/KernelbootRun.sh >/dev/null 2>&1")
ps("</dev/null ps aux | grep processCreator.py | awk '{print $2}' | xargs kill -9 >/dev/null 2>&1")
Or perhaps define another function:
def psn(self, command):
os.system("</dev/null " + command + " >/dev/null 2>&1 & disown")
psn("/var/tmp/KernelbootRun.sh")
psn("ps aux | grep processCreator.py | awk '{print $2}' | xargs kill -9")
This works great, as stand-alone process for my movie.
p.py:
import subprocess
subprocess.Popen("/var/tmp/runme.sh", shell=False, stdin=subprocess.PIPE, stdout=subprocess.PIPE)
runme.sh:
#!/bin/bash
export DISPLAY=:0.0
vlc /var/tmp/Terminator3.Movie.mp4
