Copies events from one calendar to another. Can be continually run.

continually_copy_events.applescript

repeat
	tell application "System Events" to set CalIsRunning to (name of processes) contains "Calendar"
	tell application "Calendar"
		if CalIsRunning is false then
			activate
			delay 10 # If Calendar isn't running and needs to be launched, the script will fail becuase Calendar isn't ready to accept commands as soon as it's launched.
		end if
		set workEvents to (get events of calendar "Calendar 1")
		set testEvents to (get events of calendar "Calendar 2")
		set testEventDates to {}
		repeat with minorEve in testEvents
			copy (start date of minorEve) to end of testEventDates
		end repeat
		repeat with eve in workEvents
			if ((start date of eve) is not in testEventDates) then # Makes the assumption that events have unique start dates. If two or more events occur at the same start time, only one will be copied.
				duplicate eve to the end of events of calendar "Calendar 2"
			end if
		end repeat
	end tell
	set CalIsRunning to false
	delay (5 * 60)
end repeat