mongodb commands

commands.txt

mongod --path
mkdir -p /data/db

db.help()

-- shows databases
show dbs

-- shows collections
show collections

-- delete 
db.canada.drop()

-- change databse
use xxx

-- inserts 
db.jobes.insert({text: "Hi!"});
db.jobes.insert({text: "Hej!", stars: -1});

-- query
db.jobes.find()
db.jobes.findOne()
db.jobes.find({text: /!$/})
db.jobes.find({province: "BC"}).count()
db.jobes.find({province: "BC"}).explain()

-- delete
db.jobes.

-- import 
mongoimport --help
mongoimport --type csv --headerline doc/CSV/products/breuninger_july_complete_utf8.csv -c products

-- export
mongoexport -c products > products.json

head -l products.json | jq