I have been using Linux for a decade now and this is why sometimes I take things for granted. Copy pasting in the Linux terminal is one of such things.
I gave the following suggestion to the Ubuntu user: Use Ctrl+Shift+C for copying and Ctrl+Shift+V for pasting text in the terminal in Ubuntu.
On Ubuntu and many other Linux distributions, you can use Ctrl+shift+C for copying text and Ctrl+shift+V for pasting text in the terminal.
This key is almost universal for saving same as Ctrl+C is for copying.However, if you enter Ctrl+S in Linux terminal, it will freeze the terminal.