ftp> open target_IP ( or hostname) : ftp 서버 커넥션 요청 ftp> user : : 사용자 확인 절차 ( uid or anonymous) passwd : ftp> dir ( or ls) : Directory 정보 ( Dos : dir Unix,Linux= ls ) ftp> cd /target_dir : Change Directory ftp> binary ( or ascii) : binary type or character type ftp> get target_file : Read (=download) ftp> put target_file : Write(=upload) ftp> mput target_file_A target_file_B : Multiple file write..