find(\&countLines, $dir);

sub countLines {
    /\.txt$/ or return;

    my $completePath = $File::Find::name;
    my $curDir       = $File::Find::dir;
    my $curFile      = $_;

my @lines = read_file( $curFile ) ;
my $numLines = @lines;
    print "Cur dir: $curDir; Cur file: $curFile; Num Lines: $numLines \n";
  

print "The array's elements are"
  . ( sameArrayElements(@lines) ? '' : ' not' )
  . ' the same.';

sub sameArrayElements {
    my %hash = map { $_ => 1 } @_;
    keys %hash == 1 ? 1 : 0;
}

}