wget -qO- http://goo.gl/????? | mongo --quiet <db-name>

gistfile1.txt

#You can also output all your indexes together with their size:

rs.slaveOk();

db.getCollectionNames().forEach(function(coll) {
      print("db." + coll + ".ensureIndex(" + tojson(index.key) + ")");
      db.[coll].stats().indexSizes
});

show-indexes.js

rs.slaveOk();

db.getCollectionNames().forEach(function(coll) {
  db[coll].getIndexes().forEach(function(index) {
    if ("_id_" !== index.name) {
      print("db." + coll + ".ensureIndex(" + tojson(index.key) + ")");
    }
  });
});