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journalctl

Reference manpage: man journalctl

systemd's integrated logging system, collects logs from the kernel, initrd, services, and applications. The journalctl command is used to query and display these logs.

View all logs

journalctl

This will show all logs, paginated logs since last boot

journalctl -b

View logs for a specific service

journalctl -u <service_name>

Follow new logs in real-time

journalctl -f

view logs for a specific time

journalctl --since "2023-01-01 10:00:00" --until "2023-01-01 10:30:00"
journalctl --since "yesterday"

View logs for a specific user

journalctl --user -u <user_service_name>