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  1. or download this
    my $i = 123;
    for \$i ( 0 .. 10 ) {
    ...
    print $i;
    __END__
    5
    
  2. or download this
    my $i = 123;
    for ($i = 0; $i <= 10; ++$i) {
    ...
    print $i;
    __END__
    5