
PUT
   ASCII mode usage: "put <filename>"
   Open the new file <filename> for writing.  After this
   command is entered, send the file contents, terminating 
   it with a ^D or ^Z (0x04 or 0x1A).

   BINARY mode usage: "put <filename> <size>"
   Open the new file <filename> for writing.  After this
   command is entered, send exactly <size> bytes of the 
   file contents.
