I have no problem with manual update currency rate in page Admin > Stores > Currency Rates How to create the cron run to update currency per hour?
And I already make cron per hour to clean magento cache. It's work fine.
Maybe the good way will be just create the new cron job like below, but I can't find the true syntax?
18 * * * * /usr/bin/php -c /etc/php.ini /home/domain.com/public_html/bin/magento currency:update