journalctl tail - How to View journalctl Logs Live in Real-Time
When troubleshooting Linux systems that use systemd, monitoring logs in real-time is essential for identifying and resolving issues quickly. The journalctl command with its -f parameter (short for “follow”) provides this capability, showing logs continuously as they’re generated—similar to the traditional tail -f command but with the powerful filtering capabilities of systemd’s journal. This real-time monitoring lets you observe system behavior as it happens, catching errors and anomalies immediately.