mogodb安装启动及简单使用命令

1. Mongodb下载

     wget http://fastdl.mongodb.org/linux/mongodb-linux-i686-2.0.7.tgz
   

2. 解压安装

     tar zxvf mongodb-linux-i686-2.0.7.tgz
     cp mongodb-linux-i686-2.0.7 /usr/local/mongodb-2.0.7
     cd /usr/local/mongodb-2.0.7
     touch mongodb-start.sh
     mkdir data
     touch dblogs
     
   

     ##mongodb-start.sh 文件内容
     #!/bin/bash
     
     MONGODB_HOME=`echo $(cd .;pwd)`
     echo $MONGODB_HOME
     ${MONGODB_HOME}/bin/mongod \
          --dbpath=${MONGODB_HOME}/data/ \
          --logpath=${MONGODB_HOME}/dblogs \
          --fork
   

3. 启动mongodb

     chmod a+x mongodb-start.sh
     ./mongodb-start.sh
   

     当你看到类似如下信息：
     /usr/local/mongodb-2.2
     forked process: 6739
     all output going to: /usr/local/mongodb-2.2/dblogs
     log file [/usr/local/mongodb-2.2/dblogs] exists; copied to temporary file [/usr/local/mongodb-2.2/dblogs.2012-09-13T01-56-36]

     child process started successfully, parent exiting
     
     即说明mongodb安装成功。
       
   

4. mongodb使用

     如下所示：
      ./mongo
     MongoDB shell version: 2.2.0
     connecting to: test
     > dbs;
     Thu Sep 13 09:57:06 ReferenceError: dbs is not defined (shell):1
     > show dbs;
     local	(empty)
     > use test;
     switched to db test
     > show db;
     Thu Sep 13 09:57:41 uncaught exception: don't know how to show [db]
     > show dbs;
     local	(empty)
     > db.createCollection("mycoll");
     { "ok" : 1 }
     > show tables;
     mycoll
     system.indexes
     > db.mycoll.insert({a:10,b:19});
     > db.mycoll.find();
     { "_id" : ObjectId("50513e01cfbe829a0607489d"), "a" : 10, "b" : 19 }
     > db.mycoll.insert({a:11,b:29});
     > db.mycoll.find();
     { "_id" : ObjectId("50513e01cfbe829a0607489d"), "a" : 10, "b" : 19 }
     { "_id" : ObjectId("50513e23cfbe829a0607489e"), "a" : 11, "b" : 29 }
     > db.mycoll.findOne();
     { "_id" : ObjectId("50513e01cfbe829a0607489d"), "a" : 10, "b" : 19 }
     > db.mycoll.count();
     2
   

     详细的使用方法请关注[http://www.mongodb.org/display/DOCS/SQL+to+Mongo+Mapping+Chart]