Restart crontab
sudo service cron reload
Successful Shrew
sudo service cron reload#Red Hat / CentOs:
service crond restart
#or
/etc/init.d/crond restart
#Ubuntu:
sudo service cron restart
#or
sudo /etc/init.d/cron restart# service crond start
/etc/init.d/cron reload# /etc/init.d/crond start