journalctlConsulta el registro systemd. Más información: https://www.freedesktop.org/software/systemd/man/journalctl.html.
journalctl {{[-b|--boot]}} {{[-p|--priority]}} 3
journalctl --vacuum-time 2d
tail -f de un syslog tradicional):journalctl {{[-n|--lines]}} {{N}} {{[-f|--follow]}}
journalctl {{[-u|--unit]}} {{unidad}}
journalctl _SYSTEMD_INVOCATION_ID=$(systemctl show --value --property=InvocationID {{unidad}})
journalctl {{[-S|--since]}} {{now|today|yesterday|tomorrow}} {{[-U|--until]}} "{{YYYY-MM-DD HH:MM:SS}}"
journalctl _PID={{pid}}
journalctl {{ruta/al/ejecutable}}