hdfs dfs -put file*.txt input_wordcount的input_wordcount怎么查看
时间: 2024-03-01 17:52:13 浏览: 33
在Hadoop中,HDFS命令`hdfs dfs -put file*.txt input_wordcount`主要是将本地文件上传到HDFS指定的目录中,其中`input_wordcount`是目标目录的名称。如果您想查看该目录中的内容,可以使用以下命令:
```
hdfs dfs -ls input_wordcount
```
该命令将会列出`input_wordcount`目录下的所有文件和子目录。如果您想查看某个特定文件的内容,可以使用以下命令:
```
hdfs dfs -cat input_wordcount/filename.txt
```
其中,`filename.txt`是要查看的文件名。这将输出文件的内容到终端中。
相关问题
./bin/hdfs dfs -put ./etc/hadoop/*.xml input
As an AI language model, I don't have access to your local file system or Hadoop cluster. However, I can explain the meaning of the command you have provided.
The command "./bin/hdfs dfs -put ./etc/hadoop/*.xml input" is used to copy all the XML files located in the "./etc/hadoop/" directory to the "input" directory in HDFS (Hadoop Distributed File System).
Here is the breakdown of the command:
- "./bin/hdfs": This specifies the path to the Hadoop Distributed File System command-line interface binary file.
- "dfs": This is the subcommand used to interact with the HDFS.
- "-put": This is the command used to copy files from the local file system to HDFS.
- "./etc/hadoop/*.xml": This specifies the path to all the XML files located in the "./etc/hadoop/" directory. The "*" character is used to match any file name with the ".xml" extension.
- "input": This specifies the destination directory in HDFS where the files will be copied to.
./bin/hdfs dfs -put ./etc/hadoop/*.xml input失败提示put: `input': No such file or directory
这个错误提示表示当前目录下没有名为“input”的文件或目录。请确认当前目录是否正确,或者在命令中指定准确的文件路径。例如,如果要将所有Hadoop配置文件上传到名为“input”的HDFS目录中,可以使用以下命令:
./bin/hdfs dfs -put ./etc/hadoop/*.xml /input/