Append data from LocalFile to a remote file RemoteFile on an SFTP server.
Object Oriented Interface
public function doAppend();
Similar to the Upload method but the local file specified by LocalFile is appended to RemoteFile on the server as opposed to replacing it as done by the Upload method. RemoteFile is either an absolute path on the server, or a path relative to RemotePath. The server will create a file with that name if it doesn't already exist (similar to Upload).
If there is no SSH session in place, one is automatically created by the component first.