Howtoconnecttomongodboncentos7

database

sample

[lwk@qwfys:~]$ mongo -u lanzhou mongodb://vm88.lan/lanzhou

MongoDB shell version v4.2.8

Enter password:

connecting to: mongodb://vm88.lan:27017/lanzhou?compressors=disabled&gssapiServiceName=mongodb

Implicit session: session { "id" : UUID("491fae27-1060-48ec-b156-69fe9c27d117") }

MongoDB server version: 4.2.8

> help

db.help() help on db methods

db.mycoll.help() help on collection methods

sh.help() sharding helpers

rs.help() replica set helpers

help admin administrative help

help connect connecting to a db help

help keys key shortcuts

help misc misc things to know

help mr mapreduce

show dbs show database names

show collections show collections in current database

show users show users in current database

show profile show most recent system.profile entries with time >= 1ms

show logs show the accessible logger names

show log [name] prints out the last segment of log in memory, "global" is default

use <db_name> set current database

db.foo.find() list objects in collection foo

db.foo.find( { a : 1 } ) list objects in foo where a == 1

it result of the last line evaluated; use to further iterate

DBQuery.shellBatchSize = x set default number of items to display on shell

exit quit the mongo shell

> show collections

artists

inventory

musicians

producers

userDomain

>

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