if ($file =~ /[aeiou]{2}/i) { ... }

Another small point: case-insensitive matching (enabled by the  /i regex modiifer (which I see you snuck in there)) imposes a run-time penalty which will become noticable, at a wild guess, for files of more than several thousand lines. Maybe use
    $file =~ m{ [AaEeIiOoUu]{2} }xms
to avoid this overhead. Of course, another approach would be to common-case all lines before matching...

In reply to Re^2: Vowel search by AnomalousMonk
in thread Vowel search by Noob@Perl

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