What is the ellipsis badge on minimized terminal app in the dock mean?

Question

I have another terminal window minimized next to it in the dock and it doesn't have the ellipsis. Also it doesn't have any running processes. What does it mean?

Answer 1

See the question Terminal doesn't show badge - how to enable?. In the accepted answer it says:

There is also an "unread text" indicator displayed in tabs, in the form of ellipsis ("…"):

This is displayed when anything is written to a background terminal, and, like the bell indicator, cleared when you activate that terminal window/tab. An "unread text" ellipsis is also displayed on minimized terminal windows in the Dock.