0814 安装hadoop失败。加油

http://jingyan.baidu.com/album/295430f13fb4db0c7f005065.html xshell 简易用法

 

csdn里面的方法是行不通的，所以试试这种方法

http://sharadchhetri.com/2013/06/03/how-to-set-java-environment-variables-in-linux-or-centos/

Install JDK (java) rpm

rpm -ivh jdk-1.7.0_21-fcs.i586

Generally after installation Java file goes to the path /usr/java/jdk-xx-version/. In my case it is in

/usr/java/jdk1.7.0_21

 

source /root/.bash_profile 这里用的是这个方法 /当前登录用户root