Using the HttpFS Server with curl
You can use a tool such as curl to access HDFS using HttpFS. For example, to obtain the home directory of the user babu, use a command such as this:
$ curl "http://localhost:14000/webhdfs/v1?op=gethomedirectory&user.name=babu"
You should see output such as this:
HTTP/1.1 200 OK Server: Apache-Coyote/1.1 Set-Cookie: hadoop.auth="u=babu&p=babu&t=simple&e=1332977755010&s=JVfT4T785K4jeeLNWXK68rc/0xI="; Version=1; Path=/ Content-Type: application/json Transfer-Encoding: chunked Date: Wed, 28 Mar 2012 13:35:55 GMT {"Path":"\/user\/babu"}
See the WebHDFS REST API web page for complete documentation of the API.