Ubuntu Create a cron.log File To Log crontab Logs [16.04/18.04/20.04]

To create a "cron.log" file to log crontab logs on Ubuntu 16.04, 18.04, and 20.04, you can use the following steps:

1. Create the "cron.log" file:

# touch /var/log/cron.log

1. Change the ownership of the file to the syslog user:

# chown syslog:adm /var/log/cron.log

1. Edit the syslog configuration file:

# nano /etc/rsyslog.d/50-default.conf

1. Add the following line to the end of the file:

cron.* /var/log/cron.log

1. Restart the syslog service to apply the changes:

# service rsyslog restart

That's it! The "cron.log" file will now log all crontab logs. You can view the logs using the following command:

# tail -f /var/log/cron.log

Note that these steps assume that you are using the default syslog implementation on Ubuntu. If you are using a different logging system, the steps to configure crontab logging may differ.