journalctl

Monitor system logs:

$ journalctl -f

Just like tail -f.

If you have admin previlege, you can see the kernel messages.

Monitor only kernel messages:

$ sudo journalctl -k -f

Show full messages of a service(unit):

$ journalctl -eu slurmd

-e makes the pager scroll to the end.

Show long lines (long lines are truncated by pager):

$ journalctl -u slurmd -o cat --no-pager