DBMS_FILE_TRANSFER PL/SQL package.

Sample

CREATE or replace DIRECTORY source_dir AS '+DATA/DPG/ARCHIVELOG/2011_07_16';
CREATE or replace DIRECTORY dest_dir AS '/home/oracle/ARC';

exec dbms_file_transfer.COPY_FILE('source_dir','thread_1_seq_22287.328.756667191','dest_dir','thread_1_seq_22287.328.756667191');

COPY_FILE
The COPY_FILE procedure allows you to copy binary files from one location to another on the same server.

-- Create the source and destination directory objects.
CREATE OR REPLACE DIRECTORY db_files_dir1 AS '/u01/oradata/DB10G/';
CREATE OR REPLACE DIRECTORY db_files_dir2 AS '/u02/oradata/DB10G/';

-- Switch a tablespace into read only mode so we can
-- use it for a test file transfer.
ALTER TABLESPACE users READ ONLY;

-- Copy the file.
BEGIN
DBMS_FILE_TRANSFER.COPY_FILE(
source_directory_object => 'DB_FILES_DIR1',
source_file_name => 'USERS01.DBF',
destination_directory_object => 'DB_FILES_DIR2',
destination_file_name => 'USERS01.DBF');
END;
/

-- Switch the tablespace back to read write mode.
ALTER TABLESPACE users READ WRITE;

Checking the destination directory will reveal that the file has been copied successfully.

GET_FILE
The GET_FILE procedure allows you to copy binary files from a remote server to the local server.

-- Login to the remote server.
CONN system/password@remote

-- Create the source directory object and switch mode of a tablespace.
CREATE OR REPLACE DIRECTORY db_files_dir1 AS '/u01/oradata/DB10G/';
ALTER TABLESPACE users READ ONLY;

-- Login to the local server.
CONN system/password@local

-- Create the destination directory object and a database link.
CREATE OR REPLACE DIRECTORY db_files_dir2 AS '/u02/oradata/DB10G/';
CREATE DATABASE LINK remote CONNECT TO system IDENTIFIED BY password USING 'REMOTE';

-- Get the file.
BEGIN
DBMS_FILE_TRANSFER.GET_FILE(
source_directory_object => 'DB_FILES_DIR1',
source_file_name => 'USERS01.DBF',
source_database => 'REMOTE',
destination_directory_object => 'DB_FILES_DIR2',
destination_file_name => 'USERS01.DBF');
END;
/

-- Login to the remote server.
CONN system/password@remote

-- Switch the tablespace back to read write mode.
ALTER TABLESPACE users READ WRITE;

Checking the destination directory on the local server will reveal that the file has been copied successfully.

PUT_FILE
The PUT_FILE procedure allows you to copy binary files from the local server to a remote server.

-- Login to the remote server.
CONN system/password@remote

-- Create the destination directory object.
CREATE OR REPLACE DIRECTORY db_files_dir2 AS '/u02/oradata/DB10G/';

-- Login to the local server.
CONN system/password@local

-- Create the source directory object, database link and switch mode of a tablespace.
CREATE OR REPLACE DIRECTORY db_files_dir1 AS '/u01/oradata/DB10G/';
CREATE DATABASE LINK remote CONNECT TO system IDENTIFIED BY password USING 'REMOTE';
ALTER TABLESPACE users READ ONLY;

-- Put the file.
BEGIN
DBMS_FILE_TRANSFER.PUT_FILE(
source_directory_object => 'DB_FILES_DIR1',
source_file_name => 'USERS01.DBF',
destination_directory_object => 'DB_FILES_DIR2',
destination_file_name => 'USERS01.DBF',
destination_database => 'REMOTE');
END;
/

-- Switch the tablespace back to read write mode.
ALTER TABLESPACE users READ WRITE;