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+--- Thread: Script won't run at boot (/thread-25152.html)
Script won't run at boot - ebolisa - Mar-21-2020
Hi,
The code below which speaks a wellcome msg if there's an internet connection, runs manually but not at boot through crontab.
Where did I go wrong?
TIA
#!/usr/local/bin/python3
from subprocess import call
from time import sleep
domain = ('www.google.com')
def _call():
call(['espeak "Welcome John" 2>/dev/null'], shell=True)
def ping(host):
ret = call(['ping', '-c', '3', '-W', '5', host], stdout=open('/dev/null', 'w'), stderr=open('/dev/null', 'w'))
return ret
if __name__ == "__main__":
p = 1
while p == 1:
p = ping(domain)
if(p == 0):
_call()
sleep(.3)
RE: Script won't run at boot - Larz60+ - Mar-21-2020
what does your crontab entry look like?
RE: Script won't run at boot - ndc85430 - Mar-21-2020
Impossible to say really. What are the logs for cron saying? I imagine you'll find them under /var/log somewhere.
RE: Script won't run at boot - ebolisa - Mar-21-2020
Line in crontab: "@reboot python3 /home/pi/wellcome.py"
No errors in boot.log, system nor in messages
RE: Script won't run at boot - ndc85430 - Mar-21-2020
What about cron's logs specifically? On my system, they're in /var/log/cron - YMMV.
RE: Script won't run at boot - ebolisa - Mar-21-2020
I don't see that. I'm running linux on a raspberry zero W board.
RE: Script won't run at boot - ebolisa - Mar-21-2020
I guess espeak cannot be called during boot.
This code works better.
#!/usr/bin/env python
import os, sys, socket
from subprocess import call
from time import sleep
booted = "UEFI" if os.path.exists("/sys/firmware/efi") else "BIOS"
def is_connected():
try:
socket.create_connection(("192.168.0.1", 80))
return True
except OSError:
pass
return False
if __name__ == "__main__":
p = 1
while p == 1:
if(booted == 'BIOS' and is_connected() == True):
p = 0
call(['espeak "Welcome John" 2>/dev/null'], shell=True)
sleep(.3)