There is always no warnings 'once';. My personal preference is to use this locally to the error, so that you cam still detect inadvertent cases of this elsewhere in your code.

sub wanted {
  if ($File::Find::name =~ m%^/path/detection%){
    no warnings 'once';
    $File::Find::prune = 1;
    return;
  }
}

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Don't worry about adding execution time to your subroutine; this pragma is applied at compile time.

In reply to Re: Why $FIle::Find::prune = 1 returns used only once error by Anonymous Monk
in thread Why $FIle::Find::prune = 1 returns used only once error by h2

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