Ubuntu terminal: How to change ctrl + c (interrupt) to something else?
The key combo was changed to Ctrl + Alt + C by default.
Also Alt + F4 is will kill the foreground task (same as clicking the cross).
To change the interrupt key to ctrl + I
stty intr ^i
Just change the "i" to any other letter you want and to see all terminal shortcuts you can run
stty -a
There is a very good answer explaining this here, ignore the title and read the first answer.