if you have xterminal opened then you can just copy the files to your memory card

cp = copy
To copy a directory with all subdirectories and files use the Linux / Unix cp command. Below is an example command of how you would use the cp command to copy files. Additional information about this command and other examples can also be found in the above cp link.

cp -r /home/hope/files/* /media/mmc1/

http://www.computerhope.com/unix/ucp.htm