centos7安装mongo数据库的方法(mongo4.2.8)

$ tar -zxvf mongodb-linux-x86_64-rhel70-4.2.8.tgz

$mv mongodb-linux-x86_64-rhel70-4.2.8  /usr/local/  #移动
$mv mongodb-linux-x86_64-rhel70-4.2.8 mongodb   #改名

$ mkdir data logs

$vi logs/mongodb.log

$cd bin
$vi mongodb.conf

[root@hadoop-master bin]# ./mongod -f mongodb.conf
about to fork child process, waiting until server is ready for connections.
forked process: 12441
child process started successfully, parent exiting

[root@hadoop-master bin]# mongo
bash: mongo: command not found...

//在文件最后一行加入以下代码
$vi /etc/profile   
export PATH=$PATH:/usr/local/mongodb/bin
//重新加载配置文件
[root@hadoop-master bin]# source /etc/profile
//检查环境变量
$echo $PATH

[root@hadoop-master bin]# mongo
MongoDB shell version v4.2.8
connecting to: mongodb://127.0.0.1:27017/?compressors=disabled&gssapiServiceName=mongodb
Implicit session: session { "id" : UUID("cbf68ac0-a896-4bb6-8d1e-8c4923aaf526") }
MongoDB server version: 4.2.8
或者：测试是否启动成功
$./mongo localhost:27017
用命令-> show dbs来显示当前所有的数据库
> use mytest       //创建数据库
switched to db mytest
> db.mytest.insert({"id":"1","name":"hmf"})   //创建表插入数据(mongo是插入数据就直接创建表)
WriteResult({ "nInserted" : 1 })

//在bin目录下编写一个shell脚本
$ vi startmongodb.sh
//脚本内容：nohup ./mongod -f mongodb.conf &
//授权和启动mongodb
$ Chmod +x startmongodb.sh
$ ./startmongodb.sh
//查看日志
$tail -100f nohup.out