java - 找不到 Hadoop 命令

Question

我已经在 Linux 机器上安装并配置了 hadoop。现在我正在尝试运行一个示例 MR 作业。我已经通过命令/usr/local/hadoop/bin/start-all.sh 和输出启动了 hadoop是

namenode running as process 7876. Stop it first.
localhost: datanode running as process 8083. Stop it first.
localhost: secondarynamenode running as process 8304. Stop it first.
jobtracker running as process 8398. Stop it first.
localhost: tasktracker running as process 8612. Stop it first.

所以我认为我的 hadoop 配置成功。但是当我尝试在命令下运行时，它给出了

jeet@jeet-Vostro-2520:~$ hadoop fs -put gettysburg.txt /user/jeet/getty/gettysburg.txt
hadoop: command not found

我是 hadoop 的新手。有人请帮忙。我也发布了我正在尝试的屏幕截图

Answer 1

从您的命令历史记录看来，您可以将 hadoop 替换为 /usr/local/hadoop/bin/hadoop，这应该会有所帮助。

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如果你想使用 hadoop 命令而不指定它的完整路径，你可以编辑 ~/.bashrc 文件并添加以下行:

export PATH=$PATH:/usr/local/hadoop/bin/

然后你需要重新打开你的终端。