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Do you need to run a sh script in crontab?
If your script is executable, then you don’t need to have your crontab running /bin/sh file.sh. Also, file.sh probably isn’t in the directory crontab runs on. You’ll prefer using /path/to/file.sh. Redirecting your crontab output, you’ll want to catch stderr as well.
How to run Linux running.sh in Cron?
In order to run your command from cron, you’ll need to add a no-password entry in sudo. Using sudo visudo, add this: I always use the full path whenever I grant specific sudo command access, so check your system to make sure where systemctl lives.
Is it safe to run crontab on root?
NOTE: There is no particular security risk to running jobs under root’s crontab, so long as you use some common sense. I feel the most important point here is this: write access to the script you’re running should be limited to the root user.
How to run bash inside cronjob-Unix stack?
System-wide crontab entry (omit the root field if this is root’s own crontab, as accessed with crontab -e ): As far as I can detemine, your script takes the third iteration from top and collects the CPU usermode percentage.
What to do if Bash is not running via crontab?
To make sure it is, run the following command: Do crontab -e for whichever crontab you’re using and replace it with output of the above command. This should mirror most of your environment in case there is some missing path issue or something else. Also check logs for any errors it’s getting.
Why is my bash script not working with cron?
A common “gotcha” is the PATH environment variable being different. Maybe your cron script uses the command somecommand found in /opt/someApp/bin, which you’ve added to PATH in /etc/environment? cron does not read that file, so running somecommand from your script will fail when run with cron, but work when run in a terminal.
Why is cron job not running with same user?
The cron job doesn’t run with the same user with which you are executing the script manually – so it doesn’t have access to the same $PATH variable as your user which means it can’t locate the Java executable to execute the commands in the script. We should first fetch the value of PATH variable as below and then set it (export) in the script –