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        my $fh;
        ok( open($fh, "|-", "prince - 2>/dev/null $test_file"), "Open 
+$test_file for writing" );
        print $fh "<html><body><h1>Hello, world!</h1></body></html>";
        ok( close($fh), "Close $test_file");

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ok 3 - Open /opt/humana/svn/checkouts/rosalind-repo/prod/tmp/testfile.
+pdf for writing
not ok 4 - Close /opt/humana/svn/checkouts/rosalind-repo/prod/tmp/test
+file.pdf