#! /bin/sh
ls -1r |
egrep '^[0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]$' |
sed -e 1d -e 's@^\(....\)-\(..\).*@mkdir -p \1/\2 2> /dev/null; echo mv & \1/\2; mv & \1/\2@' |
sh