Strange encoding in Slackware

Question

I am a student and learning about operating systems, I was modifying a file using vi, when I accidentally did something (I don't remember what) that change the codification/encoding and now this is how I see everything.

That screenshot is while using vi, but the problem is system wide. I tried searching but couldn't find anything.

I can delete, everything and reinstall, as it is just a virtual machine but I'd rather learn what happened.

Answer 1

I think all you need to do is run reset.

If that doesn't help, look to see if you changed any files in /etc recently (e.g. find /etc -mtime -1) and read the unicode_start or consolechars man pages.

Answer 2

Another, older way of doing the same thing as reset: stty sane