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  1. or download this
    !/usr/bin/perl -wd
    
    ...
            @$deck[$i,$j] = @$deck[$j,$i];
        }
    }
    
  2. or download this
    !/usr/bin/perl -wd
    
    ...
    
    @shuff = shuffle(@files);
    print $shuff[$_],"\n" for 0 .. 5;