WHY

dir *.jpg | ?{$_ -is [IO.FileInfo] -and $_.Name -match '^(\d{2})(\d{2})(\d{2})\.(\d{2})(\d{2})(\d{2})'} | %{$a = $matches; $_.CreationTime = '20' + $a[1] + '-' + $a[2] + '-' + $a[3] + ' ' + $a[4] + ':' + $a[5] + ':' + $a[6]}
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