add example of zipcode statistics - osm-zipcodes - Extract (dutch) addresses from OpenStreetMap OSM XML 
 (HTM) git clone git://git.codemadness.org/osm-zipcodes
 (DIR) Log
 (DIR) Files
 (DIR) Refs
 (DIR) README
 (DIR) LICENSE
       ---
 (DIR) commit 3f0c088bd74d19d461502b70612b68877dc66185
 (DIR) parent 2556bdd353403cafef058932f9e93c12bf9d4d34
 (HTM) Author: Hiltjo Posthuma <hiltjo@codemadness.org>
       Date:   Tue, 22 May 2018 19:44:37 +0200
       
       add example of zipcode statistics
       
       Diffstat:
         M README                              |      30 ++++++++++++++++++++++++++++++
       
       1 file changed, 30 insertions(+), 0 deletions(-)
       ---
 (DIR) diff --git a/README b/README
       @@ -17,6 +17,36 @@ How to use
        5. Unique entries, ignore node ID, latitude, longitude, see the file sort.sh
        
        
       +Examples
       +--------
       +
       +Count of addresses of numeric part of zipcode:
       +
       +        awk '{
       +                a[substr($4, 0, 4)]++;
       +        }
       +        END {
       +                for (k in a) {
       +                        print k "\t" a[k];
       +                }
       +        }' addr_sort_uniq.csv
       +
       +
       +Count of addresses of street + city combination:
       +
       +        awk '{
       +                a[$5 "|" $7]++;
       +        }
       +        END {
       +                for (k in a) {
       +                        print k "\t" a[k];
       +                }
       +        }' addr_sort_uniq.csv
       +
       +
       +Contributing
       +------------
       +
        If you think this program is useful, please consider donating money or
        other means of contributing to the OpenStreetMap project: