C and V keys not working..Help!

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http://askubuntu.com – I am using Ubuntu 12.04. I was tinkering around learning the commands and stuff in terminal. I was a bit irritated that I couldn't copy and paste using only the keyboard. So I googled on how to add these shortcuts to my terminal.. I came upon these commands on DistroGeeks: gconftool-2 -s /apps/gnome-terminal/keybindings/copy -t str 'c' for adding Ctrl + C to copy... and gconftool-2 --type string --set /apps/gnome-terminal/keybindings/paste 'v' to paste using Ctrl + v... I ran these lines of code on my terminal and the c and v no longer gives the input... Uppercase works well... Now ty (HowTos)