All right, let's have a look at the commands that we've seen in this lesson.
There was journalctl, the main command that helps you to work with the systemd journal.
Till is showing the last couple of lines in the configuration file, and
that can be useful for monitoring what's going on in var log messages.
And less is also well, you already knew it.
It's what you use to read log files in the varlog directory.
And logger is a convenient command that allows you to write messages directly to your
current logging system. It works with rsyslog. It also works with systemd journal D.