Ed and sed don’t load the entire file in, but vim does. Not heard of TECO before 😄

Are you regularly opening up 12 gig log files in a text editor? Personally I’d use something like elasticsearch or less/grep for a local file.

What? You might want to proof read that. The only thing I got from your text is that text editors load an entire file into memory, which has been the case for decades unless you go with a special purpose editor.

With a quick look through the code I can see calls are being made to rebble.io and repebble.com. From there you can whois the domains.