没有得到`hadoop -version`

Question

我安装了 Hadoop，但无法获取其版本：

ramesh@ramesh-H61M-S2P-B3:~$ echo $HADOOP_HOME
/home/hadoop/work/hadoop-1.1.2
 ramesh@ramesh-H61M-S2P-B3:~$ hadoop -version
hadoop：找不到命令

我必须做什么才能让 Hadoop 工作？

Answer 1

您使用了错误的命令。

要检查 hadoop 版本，请hadoop version在终端中输入。这是示例输出

$ hadoop version
Hadoop 2.4.1
Subversion http://svn.apache.org/repos/asf/hadoop/common -r 1604318
Compiled by jenkins on 2014-06-21T05:43Z
Compiled with protoc 2.5.0
From source with checksum bb7ac0a3c73dc131f4844b873c74b630
This command was run using /usr/local/hadoop/share/hadoop/common/hadoop-common-2.4.1.jar