Nice show! Sweet script! Is it up on a public git repo somewhere?

TL;DR Would you mind adding a licence?

You might think of it as just a little, personal convenience script that doesn't mean much, that anyone can adapt if they please right? But, technically speaking, you've got the copyright (by default) and I can't legally use this code.

You may consider it open source by being on a web page that is covered by the CC-BY-SA licence but they advise against it's use for software as it doesn't explicitly cover distribution of source code (see https://creativecommons.org/faq/#can-i-apply-a-creative-commons-license-to-software).

I ask you to consider adding a licence to make it clear what people can do with your script. I'd sure love to use it but, if I make changes and want to share it, we're in a grey area ;)