Cron – отключить уведомления на почту

Cron job prevent the sending of errors and output

To prevent the sending of errors and output, add any one of the following at the end of the line for each cron job to redirect output to /dev/null.

>/dev/null 2>&1

OR

> /dev/null

OR

> /dev/null 2>&1 || true

Cron job example

Edit/Open your cron jobs, enter:

$ crontab -e

Append string >/dev/null 2>&1 to stop mail alert:

0 1 5 10 * /path/to/script.sh >/dev/null 2>&1

OR

0 1 5 10 * /path/to/script.sh > /dev/null

OR

0 * * * * /path/to/command arg1 > /dev/null 2>&1 || true

Save and close the file.

Set MAILTO variable

You can set MAILTO=”” variable at the start of your crontab file. This will also disable email alert. Edit/Open your cron jobs:

$ crontab -e

At the top of the file, enter:

MAILTO=""

Save and close the file.

https://www.cyberciti.biz/faq/disable-the-mail-alert-by-crontab-command/