Crontab syntax basics, and how it differs from WP-Cron

"What does */5 * * * * actually mean?" — anyone setting up a scheduled task on a server has probably stared at that row of asterisks at some point. If you run WordPress, you may already be familiar with inspecting WP-Cron's internals through WP-CLI, but the actual crontab syntax used by the OS itself is something many people never learn properly. Before you can switch WP-Cron over to a real OS-level cron job, you need to understand that syntax first. Note: crontab is a scheduling mechanism bui