Answer / Shamee Ahmad

To copy a file into HDFS with a different block size, you can use the `-D dfs.blocksize` command line option with the `hadoop cp` or `hadoop fs -copyFromLocal` commands. Here's an example:

```bash
hadoop fs -copyFromLocal /local/path/to/file hdfs://namenode:port/hdfs/destination-path -D dfs.blocksize=<custom-block-size>
```
Replace `<custom-block-size>` with the desired block size in bytes, and update the path components accordingly.

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