Quick posix shell rot13 tip: pipe it into:

tr '[A-Za-z]' '[N-ZA-Mn-za-m]'

Also sometimes useful is vim: `g?` ... it's useful to have "scrambled" lines in notes for protection against casual disclosure.

Vim used to have a (terrible) encryption capability, but lately I've been fairly happy with `pass` (passwordstore.org) for basic local encryption.

There's a rot13 command in the bsdgames package on Ubuntu. Or you could just create an alias. Not sure if the command takes file input.

Thank you. Tried that as well, still throws up a string of letters and numbers. But the frequency this time seemed a bit more consistent, so the trick is to apply some sort of frequency analysis, I guess. Still on it.

BTW, are there any more of such 'puzzle hunt' websites where you could play around and sharpen your decoding skills? Thanks!

Here's a list: https://gist.github.com/numberwhun/d85075f4f63411bafa1c6e40e...