./utils/update.php --import-osmosis-all
+(Note that even though the old name "import-osmosis-all" has been kept for compatibility reasons, Osmosis is not required to run this - it uses pyosmium behind the scenes.)
+
If you have imported multiple country extracts and want to keep them
up-to-date, have a look at the script in
[issue #60](https://github.com/openstreetmap/Nominatim/issues/60).