I tried putting the logic into a BEGIN block, but without success. It is perhaps too late on line 6.
When testing code samples, I name them 1.pl, 2.pl, 3.pl and so on. The next day, I remove all of them and start again from 1. It is shorter than using the node's id in the name, but still lets me keep several answers ready for improvement if there are objections, which simple junk.pl would not do :-)
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