hdfs_download()

Read(173) Label: download, local file,

Description:

Download a local file to a specific position.

Syntax:

hdfs_download(hd, local,remote)

Note:

The external library function downloads a remote file or folder remote to a local file/folder local.

Parameters:

hd

An hd connection

local

A local file or folder

remote

A remote file or folder

localPath

A local file name

Options:

@d

Download all files in the specified folder to the local machine, and require both the source and directories are folders

Return value:

Boolean

Example:

 

A

 

1

=hdfs_open("hdfs://192.168.0.8:9000")

Connect to HDFS file system

2

=hdfs_download(A1," /test "," /emp/emp.txt ")

Download emp.txt in /emp folder to the local folder /test

3

=hdfs_download(A1," /test/emp1.txt "," /emp/emp.txt ")

Download emp.txt in /emp folder to the local folder /test, and rename the file emp1.txt

4

=hdfs_download@d(A1,"/s1","/h1")

Download all files under folder /h1 to the local folder /s1

5

=hdfs_close(A1)