Doesn’t that just cut one line at a time?
Move the cursor to the start of what you want to cut, press ALT+A, then move the cursor with arrow keys (you’ll see text be highlighted from where the cursor was to where you move your cursor), then once you’ve moved the cursor to where you want, press CTRL+K to cut.
I’m guessing something like… Copy file/dir from location A to location B and then delete from A, but the copy had failed (and the delete unfortunately worked fine)?