I agree, getting to know where a script "comes from" can be complex though. You can `readlink -f` (or equivalent) in many cases, but when implementing a library

I agree, getting to know where a script "comes from" can be complex though. You can `readlink -f` (or equivalent) in many cases, but when implementing a library this might not be entirely practical. I have had to rely on this ugly if-statement [1] for that purpose. [1]: https://github.com/Mitigram/mg.sh/blob/cbeb206d67fe08be2107deee50acf877f990dbdf/bootstrap.sh#L6