[Foxhuls]

I may just be blind but I don’t think I see it referred to as anything besides “terminal beeps” throughout the entire article.

[zombot]

> Here is the exact command I ran on my server: ...

Look at the quoted command, there it is.

[marginalia_nu]

He's printing BEL (or \a), which could result in almost any sound depending on how the terminal is configured.