SH Script working in console but not in Cronjob

Question

I have a Raspberry PI with Debian. I am also running Domoticz. Domoticz sometimes stops and I have to restart the service. I use this script (domoticz_state_checker.sh):

#!/bin/bash
echo 'Checking if Domoticz is running.'
DomoticzState=`sudo service domoticz.sh status`

#echo $DomoticzState

if [[ $DomoticzState == *"active (running)"* ]] 
then
    echo 'Domoticz is running. Nothing to do.'
elif [[ $DomoticzState == *"domoticz is not running ... failed!"* ]] 
then
    echo 'Domoticz is not running. Restarting Domoticz...'
    sudo service domoticz.sh restart
    echo 'Domoticz restarted.'
elif [[ $DomoticzState == *"active (exited)"* ]] 
then
    echo 'Domoticz active (exited). Restarting Domoticz...'
    sudo service domoticz.sh restart
    echo 'Domoticz restarted.'          
elif [[ $DomoticzState == *"inactive (dead)"* ]] 
then
    echo 'Domoticz inactive (dead). Restarting Domoticz...'
    sudo service domoticz.sh restart
    echo 'Domoticz restarted.'                      
fi

When I run this script as the user Pi the script works. I run it like this

pi@raspberrypi:~/domoticz/scripts $ /home/pi/domoticz/scripts/domoticz_state_checker.sh

I have created the following with crontab - e to run this as a cronjob

*/5 * * * * pi /home/pi/domoticz/scripts/domoticz_state_checker.sh >> /home/pi/domoticz/scripts/domoticz_state_checker.log 2>&1

In my cron log I see the job being executed:

Jan 10 14:55:01 raspberrypi CRON[23498]: (pi) CMD (pi /home/pi/domoticz/scripts/domoticz_state_checker.sh >> /home/pi/domoticz/scripts/domoticz_state_checker.log 2>&1)

But the script doesn't restart my Domoticz service. The check is done but then I get errors on my if and elif statement. I see the following error in my domoticz_state_checker.log :

Checking if Domoticz is running.
/home/pi/domoticz/scripts/domoticz_state_checker.sh: 7: /home/pi/domoticz/scripts/domoticz_state_checker.sh: [[: not found
/home/pi/domoticz/scripts/domoticz_state_checker.sh: 10: /home/pi/domoticz/scripts/domoticz_state_checker.sh: [[: not found
/home/pi/domoticz/scripts/domoticz_state_checker.sh: 15: /home/pi/domoticz/scripts/domoticz_state_checker.sh: [[: not found
/home/pi/domoticz/scripts/domoticz_state_checker.sh: 20: /home/pi/domoticz/scripts/domoticz_state_checker.sh: [[: not found

When I execute with suo

pi@raspberrypi:~/domoticz/scripts $ sudo /home/pi/domoticz/scripts/domoticz_state_checker.sh

I get the same result as when I run the script via cron

Any ideas what is going wrong here? Under which account is my cronjob executing?

Answer 1

i think to run shell script in cronjob as specific user you should -u option in crontab.

crontab -u pi -e

and before location file add command bash or /bin/bash

#<timing> <user> <command> */5 * * * * bash /home/pi/domoticz/scripts/domoticz_state_checker.sh >> /home/pi/domoticz/scripts/domoticz_state_checker.log 2>&1

you can find crontab from spool where is located file for all users

cat /var/spool/cron/crontabs/<user>