How do I cancel yt-dlp in progress?
 

I changed my mind about downloading and it's downloading in front of my eyes, how do I stop it with terminal commands? Thanks in advance.

How did you start it?

With

Ah! I mistakenly thought you were downloading yt-dlp itself which you probably would have started in a browser... sorry.

I have no actual familiarity with yt-dlp but I imagine it would respond to Ctrl-C in the terminal where it is running if all else fails. You might try pressing ESC a few times first, I vaguely recall yt-dl used to respond to that.

If those don't work, open a new terminal and try...

... but only if you have no other instances of it running.

Otherwise, it looks to be well documented, so begin reading.

You can cancel a CLI command by hitting CTRL+c.

After it gets cancelled using that command would any remnants of that video download remain in disk space since it had been downloading?

it depends on two things (at least): how is it implemented and how is it stopped.
see the man page, it has a huge amount of options to configure it.
Using kill -9 will does not allow to do a cleanup, so if you stop your process with it there can be some wasted files somewhere.

Yes. You'll find it wherever you downloaded to with the file type "partially downloaded".