I came across and interesting one the other day. I’ve yet to solve it, but I believe it has something to do with b64 encoding due to the fact that exactly 64 different characters appear. I’ve not had a good crack at it yet, but I’d be interested it see if anyone else is able to do it either.
It’s decently long so I’ve put it in a HasteBin: https://hastebin.com/raw/ofuduloxoq
One other speculation I have it that it might be bash code based off the fact that some lines are indented with spaces. This is probably completely wrong though because there are lines with just two chars so I think newlines are just like any other letter for this code.