Random number results when typing things in console

I'm confused, lately I've been getting numbers returned when typing certain things in the console. Also after the execution of some of my programs it has a number appearing:

CraftOS 1.3
> ls
rom
> cd rom
rom> ls
apis   help  programs
startup
rom> cd help
rom/help> ls
307
rom/help> cd ..
308
rom/help> shutdown
308
rom/help>

I had to break the computer to get out of the situation. What causes that?

You're in rom/help.. They're numbers + You're 1.3
1.41 returns
[string "list"]:1: '=' expected
Else would be a virus.

Hmm. It used to work fine. For example, I went back to working on my email server. I run startup and it shows the main menu. I hit enter on "Check your mail" and it just dumps back to the terminal with numbers 369 twice.

It actually was working fine a moment ago, but I wanted to test the detection of a msg as new vs old. I exitted the program and did cd/mail/inbox and tried to mv 81928233 81928233.new and it gave a number (forgot it tho). Went to my command line, went to the tekkit/world/computer/1/mail/inbox and tried del 81928233 and it said file was in use by a process. Rechecked my code and sure enough in the mail parse routine that shows the inbox I was forgetting to close files. Fixed that, rebooted the PC. Ran the menu and that's where I am now getting 369s.

It used to actually give me LUA errors explaining the problem.. is there a way to get back to it? I can't imagine it's a virus, I only have a few players and they're buddies who either wouldn't do that or just don't know how heh.

PS, is there a list of what those numbers mean somewhere?

EDIT: fixed…

The numbers in this case are usually the offending line number. Check line number 369 for errors.

Alas, the file only has about 20 lines of code. I noticed that a server top/start fixes it. Weird.