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hadoop-0.20

hadoop-0.20

hadoop-0.20

hadoop-0.20

1

As the hadoop-0. 20 is one of your primary interfaces to the Hadoop cluster , you 'll see this utility used quite a bit through this article.

因为 hadoop-0.20 是 Hadoop 集群的主要接口之一，您会看到本文中多次使用这个实用程序。

2

Notice that you're using a command called hadoop-0. 20 to inspect the file system .

注意，使用 hadoop-0.20 命令检查文件系统。

3

You can use the cat command (after finding the particular output file ) through the hadoop-0. 20 utility to emit this data (see Listing 7 ).

找到输出文件之后，可以通过 hadoop-0.20 实用程序使用 cat 命令查看数据（见清单 7 ）。

4

You can also extract the file from HDFS using the hadoop-0. 20 utility (see Listing 8 ).

还可以使用 hadoop-0.20 实用程序从 HDFS 中提取文件（见清单 8 ）。

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