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#!/usr/bin/env python

import sys
import time
import subprocess

Keep a process up and running

If you have a long running process that can be killed for strange and unknown
reason, you might want it to be restarted ... this script does that.

$ cat alive.sh 

while `true`; do echo Alive && sleep 3 ; done

Use it like this:
$ keepup.py ./alive.sh 

cmd = ' '.join(sys.argv[1:])

def start_subprocess():
    return subprocess.Popen(cmd, shell=True)

p = start_subprocess()

while True:
    res = p.poll()
    if res is not None:
        print p.pid, 'was killed, restarting it'
        p = start_subprocess()



  • revision 2 (14 years ago)
  • previous revisions are not available