Introduction - If you have any usage issues, please Google them yourself
Use socket programming interface to write two program, respectively for the customer program (client. C) and server program (server. C), the program should be able to achieve the following command function:
Get: take a far files
Put: to far away a file
PWD: show far Lord the current directory
Dir: lists the current directory to far away
CD: change the distance the current directory
? : show you provides commands
Quit: exit to return