#tail -f /var/log/messages-2014-10-23 (to see which directory it is read as e.g. /dev/sdb1 , once plugged in)

#cat /proc/partitions (to see which /dev/ directory it is plugged into) or #fdisk -l

#mkdir /tmp/usb (create a mount point)

#mount /dev/sdb1 /tmp/usb

#cp /var/archive/backup123. /tmp/usb

#unmount /tmp/usb