How to get back to desktop after ctrl+alt+F12

[robt]

I found reference to using ctrl+alt+F12 to view the syslog.
Now how do I get back to desktop after viewing syslog?

Also, is there a reference list anywhere of the shortcut keys for Knoppix?

[jalb]

ctrl+alt+f5, or simply: alt+f5

[Porteño]

Also, is there a reference list anywhere of the shortcut keys for Knoppix?

I share @robt's anxiety for knowing that list...