How do I - Remove duplicates from a Powershell array?

When it becomes necessary to remove duplicates from a Powershell array variable, it can quickly be achieved via the -unique switch.  You can even sort at the same time like this:

	$array = @("a", "b", "c", "b", "d", "a"); #Setup the array.
	$array = $array | sort -unique; #Sort the array while using only unique values.

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Enjoy
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