Many of the driver implementations have projection syntax which allows fields to be specified as a list/array or a hash/dictionary (default). It would be helpful if the mongo shell included similar syntactic sugar for including & excluding fields.

A few examples:

• Ruby: http://api.mongodb.org/ruby/current/Mongo/Collection.html#find-instance_method
• Python: http://api.mongodb.org/python/current/api/pymongo/collection.html#pymongo.collection.Collection.find

Conceptually this might be something similar to:

	db.zips.find({state:'NY'}, includeFields("city","zip","pop"))

Which would be equivalent to:

      db.zips.find({state:'NY'}, { "city" : 1, "zip" : 1, "pop" : 1 })