Select an editor on Vim or Vi
To disable a specific crontab entry just capture all of the output of the command and either direct it to a file or to
30 * * * * notBraiamsBackup.sh >/dev/null 2>&1
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:
Save and close the file.