I had exactly the same issue when moving to Linux from macOS. Certainly in the Gnome Terminal on Ubuntu I've been relieved to find out that C-c is still SIGINT

I had exactly the same issue when moving to Linux from macOS. Certainly in the Gnome Terminal on Ubuntu I've been relieved to find out that C-c is still SIGINT and you can get copy using Ctrl-Shift-c. Ctrl-Shit-v to insert.