This question already has an answer here: Why is my crontab not working, and how can I troubleshoot it? 3 answers Someone can help me to setup cronjob with crontab. I have run command crontab -e -u root 01 0 * * * /usr/bin/php /var/www/web/daily/testssh.php But it always get error: crontab: usage error: no arguments permitted after this option