[root@localhost mongodb]# /etc/init.d/mongod start
正在启动 mongod：[确定]
[root@localhost mongodb]# mongo#Mongodb客户端启动
MongoDB shell version v3.4.2
connecting to: mongodb://127.0.0.1:27017
MongoDB server version: 3.4.2
Server has startup warnings:
2017-02-15T10:42:11.888+0800 I STORAGE [initandlisten]
2017-02-15T10:42:11.888+0800 I STORAGE [initandlisten] ** WARNING: Using the XFS filesystem is strongly recommended with the WiredTiger storage engine
2017-02-15T10:42:11.888+0800 I STORAGE [initandlisten] ** See
2017-02-15T10:42:12.850+0800 I CONTROL [initandlisten]
2017-02-15T10:42:12.850+0800 I CONTROL [initandlisten] ** WARNING: Access control is not enabled for the database.
2017-02-15T10:42:12.850+0800 I CONTROL [initandlisten] ** Read and write access to data and configuration is unrestricted.
2017-02-15T10:42:12.850+0800 I CONTROL [initandlisten]
2017-02-15T10:42:12.850+0800 I CONTROL [initandlisten]
2017-02-15T10:42:12.850+0800 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'.
2017-02-15T10:42:12.850+0800 I CONTROL [initandlisten] ** We suggest setting it to 'never'
2017-02-15T10:42:12.850+0800 I CONTROL [initandlisten]
2017-02-15T10:42:12.850+0800 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'.
2017-02-15T10:42:12.850+0800 I CONTROL [initandlisten] ** We suggest setting it to 'never'
2017-02-15T10:42:12.850+0800 I CONTROL [initandlisten]
> show dbsshow dbs
admin 0.000GB
local 0.000GB
#有2个默认库
如此Mongodb的初步介绍使用结束。
更多MongoDB相关教程见以下内容：