The situation:
I have a bunch of text files (.csv, to be precise), around 20000 that differ in character encoding: `file -i *.csv` gives me `charset=us-ascii` for most, but some are `utf-16le`.

The goal:
I want them all to be encoded the same way, us-ascii here. I think of a one-liner that checks for each file in the directory the encoding, and if it is `utf-16le`, it converts it to `us-ascii`.

I only started to learn bash programming a few day ago, so this one still escapes me. Is it possible, something like running file -i on each file (did that), capturing the return value, check what encoding is given and if it is not us-ascii, convert it?

Thanks for helping me understand how to do that!