How to delete Hadoop data?

To delete Hadoop data, you can use the Hadoop File System (HDFS) commands. Here are the steps to delete data from HDFS:

Open your terminal.
Use the hdfs dfs -rm command to delete specific files:
```
hdfs dfs -rm /path/to/your/file
```
To delete a directory and all its contents, use the -r (recursive) option:
```
hdfs dfs -rm -r /path/to/your/directory
```
To delete all data in HDFS, you can remove the root directory (be cautious with this command):
```
hdfs dfs -rm -r /
```
To confirm deletion, you can list the contents of the directory:
```
hdfs dfs -ls /path/to/your/directory
```

Make sure you have the necessary permissions to delete the files or directories in HDFS.