{"name":"gist: 858142","desc":"How to update a single field in a MongoDB collection for all documents matching a specific criteria","actor":"sym3tri","url":"https://gist.github.com/858142","snippet":"// FROM: http://www.mongodb.org/display/DOCS/Updating#Updating-update%28%29\n// \n// db.collection.update( criteria, objNew, upsert, multi )","actor_gravatar":"ef5b828e9c89d56e48ed8346b9bf7d1f","action":"update"}