mongo-commands

Show all restaurants
db.restaurants.find()

Show first ten sorted by name
db.restaurants.   
find().   
sort({name: 1}).   
limit(10);

Find by _id
db.restaurants.findOne({_id: db.restaurants.findOne({}, {_id: 1})._id})

Find by value (borough: "Queens")
db.restaurants.find({borough: "Queens"})

Count
db.restaurants.count()

Find count where zip === 11206
db.restaurants.find({"address.zipcode":"11206"}).count()

Delete by _id
db.restaurants.deleteOne({_id: db.restaurants.findOne({}, {_id: 1})._id})

Update single document
db.restaurants.updateOne(
  {_id: db.restaurants.findOne({}, {_id: 1})._id},
  {$set: {name: "Bar Bizz Bang"}}
);

Update several documents
db.restaurants.update(
  {"address.zipcode" : "10035"},
  {$set: {"address.zipcode": "10036"}},
  {multi: true}
);