create tarball of only end of 2015 and 2016
cd wp-content/uploads/sites/
find 5/ -regextype sed -regex ".*/\(2015/1\|2016\).*" | tar -czvf uploads.tar.gz --files-from -
create tarball of only end of 2015 and 2016
cd wp-content/uploads/sites/
find 5/ -regextype sed -regex ".*/\(2015/1\|2016\).*" | tar -czvf uploads.tar.gz --files-from -