大家好，我是考100分的小小码 ，祝大家学习进步，加薪顺利呀。今天说一说How to connect to mongodb on centos7[亲测有效],希望您对编程的造诣更进一步.
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
>
代码100分
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