Or, you could use WP-CLI which was developed for scenarios like these. After a short installation like this
$ curl -O https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar
$ chmod +x wp-cli.phar
$ sudo mv wp-cli.phar /usr/local/bin/wp
You can run your scheduled tasks like so
$ wp cron event run --due-now --path=/var/www/mywebsite.com/
or via crontab
(every 5mins)
*/5 * * * * wp cron event run --due-now --path=/var/www/mywebsite.com/
You could use a specific hook
$ wp cron event run myhook --due-now --path=/var/www/mywebsite.com/
or use the --url
parameter.