Just FTR, appears (testing with 5.8 and w2k against .pl and (ASCII text) .txt files as the targets) that this produces an accurate count on the .pl files, but
not so with those named *.txt.
First suspicion was that some doubled \n instances might be the problem, but further runs aginst .txt files without blank lines disabused me of that: perl -pe"}{$\=$." f:\_wo\(various).txt, consistently undercounted the lines.
Is it just late on a hot, sticky and perhaps "stupidity-inducing" night, or do others see this too?
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