|  |  | 
	  
        | 07/07/21 | Rewrite and refector by C | 
	  
        | 07/06/06 | Add FTP prtocol to SHAREWORLD. We can download files through FTP. | 
	  
        | 07/06/04 | Add data structor "Tree" into Root FileSystem.
	 Remove sw::file's fields "_subfiles" and "_parent".
	 Remove sw::file's equal operation that between sw::file* and string name.
	 Add function "opendir", "readdir", "rewinddir", and "closedir" back as base filesystem' operations. | 
      
        | 07/05/25 | After few days work, infine sw's design: the root filesystem and other filesystem. 
	 And add destructor and assignment operator to class sw::file's. 
	 Change sw::lfp (Local File Protocol) to sw::lfs (Linux FileSystem). | 
      
        | 07/05/21 | implement command cp and Local File Protocol. rm, mv and rmdir is next step. Divide "iop" into "inp" and "outp" | 
      
        | 07/05/16 | implement command mkdir, pwd. add "iop"(I/O port) to "class file". Format file(add 'sw_') and code. |