I need to know how to download all addresses of some area from openstreet maps?
After that I want to place all addresses in csv file.
[GIS] How to download all addresses of some area from openstreet maps
addresscsvopenstreetmap
Related Solutions
You want to make use of (your own) Nominatim geocoder. Or you use an data extract and filter it for objects with addr:* tags.
it is unlikely that you will be able to batch download all of Google Data. However, you can tap into Google Data using the Google Places API.
If you are interested in OpenStreetMap use Overpass Turbo zoom to your area of interest with the Mapview port as the area you will download using the Bounding Box code:
node
({{bbox}});
out;
Of course this will only get you Nodes (points). you will have to repeat for polygons, and lines.
or take the easy route and download a batch of all OSM data using Geofabrik.
Click your Sub-Region
Click your region
Click your Subregion of the Region
then once you have picked your area click .shp.zip (or whatever format you want)
When you have your data (from whichever method you use) then take the data into QGIS and select Analysis Tools > List Unique Values. That will give you a list. you will have to organize on your own. 
in ArcGIS use the technical article on Identifying Duplicate Field Values. In this case, the results that have a '0' in the field...this would make them unique and allow you to cluster for analysis.
Best Answer
while looking for OSM download functions, I once came across the "overpass-turbo" tool (see http://overpass-turbo.eu/). Although it requires quite some time to get into it and all necessary query commands, it might do what you need.
Please refer also to the according wiki: http://wiki.openstreetmap.org/wiki/Overpass_API/Overpass_QL
You can find examples for a "CSV output mode" for a specified area.
A similar helpful discussion can be found here: How do I get the building housenumber from OSM data?