How to track internet speed test continuously using command prompt

It's not really an "internet speed" test, MYRKRISH1005, but is does provide delay/latency and "number of hops" (sort of how many "switches" were traversed).

I simply use:

ping internet.address

Where "internet.address" is the name of the server you wish to ping (like www.apple.com ).

If you want to do anything "fancier" consult the "man" page:

man ping

(Incidentally. I use this command, now and then, as a simple way of checking for Domain Name Service [DNS] issues: it will tell me that the host name is unknown, if there's a DNS issue. [Yes. There are more direct means, but I simply keep this command in my Terminal history, as a simple check.])

It will continuously ping, until you type ^C (control-c).

You are most entirely welcome, MYRKRISH1005.

Does it now do what you wanted?

Open Activity Monitor in Utilities, click on Network to get a continuing Graph & data.

Well, BDAqua, that suggestion works well to see current (and shortly past) Network activity.

However, it doesn't seem to even come close to what MYRKRISH1005 was asking about.

True, yet can give a god idea.