Assuming you have the entire content of the file in a string called $var (if you have them line by line in an array, just see whether the first character of the last element is a T), you could do: 
  $text =~ /(?:^|\n)T[^\n]*$/

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In reply to Re: Finding a Letter at Last line by Anonymous Monk
in thread Finding a Letter at Last line by mantra2006

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