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