Ubuntu Open Crontab Scheduled task log

The Crontab log feature under Ubuntu is not automatically turned on. The steps to turn on the log feature are:

① modifying Rsyslog

sudo vim/etc/rsyslog.d/-default. conf

Found it:

#cron. *                          /var/log/cron.log

Get rid of the front #

② Restart Rsyslog

sudo  service Rsyslog  restart

③ can now view the log

Tail-f/var/log/cron.log

If it appears:

(CRON) info (No MTA installed, discarding output)

Then that is, Crontab executes the script is not directly wrong information output, but will be sent in the form of mail to your mailbox, this time you need a mail server, if you do not install the mail server, it will report this error. If it is a test, you can use the following method to solve:

After each timed script, add:

>/dev/null2>&1

Reference:

Ubuntu View crontab Run log

Ubuntu turns on crontab logging and resolves no MTA installed, discarding output problem

Ubuntu Open Crontab Scheduled task log