FTP stands for File Transfer Protocol. This is a way to transfer files between network machines. The protocol defines a client(whose commands are provided by this module) and a server(which is not implemented in this module).
Communication is always initiated from the client. The server than responds with a message and a status code (and possibly data).
The FTP protocol allows you to send and retrieve files to the server. Each transfer includes local files (on the client) and remote files (on the server). In this module, if only one is specified, the same file name will used both locally and remotely. This means that if you do not specify a local file name, transferring remote file path to file will try to put the file in local path to file.
