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  1. or download this
    print FILE $myVar;
    close(FILE);
    ...
    my @file_contents=<FILE>;
    close(FILE);
    print "$myVar should equal ".chomp($file_contents[0])."\n";
    
  2. or download this
    my $a='62696c6c77667269656e6440676d61696c2e636f6d';
    while ($a=~m/(^.{2})/s)
    {print unpack('A',pack('H*',"$1"));$a=~s/^.{2}//s;}