How to see systemd unit errors/logs?

Question

linux

I created my own systemd unit, which runs a certain php script.

When viewing the status of a unit, via systemctl status my-unit , I also get a list of the last 10 lines of logs (errors that occurred).

How can I see the full list of errors for a particular unit?
And how can I disable the output of errors when viewing the status?

Answer 1

journalctl -u my-unit

Answer 2

man journalctl