the terminal command for copying a file is cp
Originally Posted by Valkyr333
here how it would look for what your trying to do.
Though if the destination is into your home directory us should not need root privilaged to do it for some reason it seems like you do so I'll do it that way :
* note: replace <usr name> with yours and <filename> witht he actual file name.
sudo cp /home/<usr name>/Downloads/<filename> /home/username/.gimp-2.6/scripts
if you want to move the file there it's exactly the same except you would use instead of cp.