Ubuntu下单机安装MongoDB并测试
1.下载mongodb-linux-i686-1.8.2.tgz放在目录/home/nh/Downloads/下并解压得到mongodb-linux-i686-1.8.22.在/home/nh/Downloads/
1.下载mongodb-linux-i686-1.8.2.tgz放在目录/home/nh/Downloads/下并解压得到mongodb-linux-i686-1.8.2
2.在/home/nh/Downloads/mongodb-linux-i686-1.8.2下新建目录data1， 在 /home/nh/Downloads/mongodb-linux-i686-1.8.2/log1目录下新建文件log1.log
3.@linuxidc:~/Downloads/mongodb-linux-i686-1.8.2/bin$ ./mongod -dbpath /home/nh/Downloads/mongodb-linux-i686-1.8.2/data1 -logpath /home/nh/Downloads/mongodb-linux-i686-1.8.2/log1/log1.log
4.@linuxidc:~/Downloads/mongodb-linux-i686-1.8.2/bin$ ./mongo 55Ubuntu:27017（在另一个命令行窗口中执行该命令，55ubuntu是你的主机名）
5.> db.test.save({a:1})(在shell中执行)
6.> db.test.findOne()（查看刚才的保存的文档｛a: 1｝,会出现一下结果，说明可用）
{ "_id" : ObjectId("4e8ff5cd7a348a89a3b2dc3f"), "a" : 1 }
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