6ze5yx3f4o 发表于 2016-6-9 09:31:12

FTP协议的命令的使用(转)

FTP 协议命令  如果想自己编写一个FTP客户端程序,首先得搞清楚FTP协议中的这些命令和用法。
  FTP COMMANDS
  The following are the FTP commands:
  USER <SP> <username> <CRLF> 登录的用户名
PASS <SP> <password> <CRLF> 密码
ACCT <SP> <account-information> <CRLF>
CWD <SP> <pathname> <CRLF> 改变当前目录
CDUP <CRLF> 返回上级目录
SMNT <SP> <pathname> <CRLF>
QUIT <CRLF> 退出
REIN <CRLF> 重新登录
PORT <SP> <host-port> <CRLF>
PASV <CRLF> 获取数据传输端口
TYPE <SP> <type-code> <CRLF> 设置数据交换的类型{A(SCII),E(BCDIC),I(mage),L(ocal byte size)}
STRU <SP> <structure-code> <CRLF>
MODE <SP> <mode-code> <CRLF>
RETR <SP> <pathname> <CRLF>
STOR <SP> <pathname> <CRLF> 用覆盖方式上传一个文件到服务器
STOU <CRLF>
APPE <SP> <pathname> <CRLF> 用追加方式上传一个文件到服务器
ALLO <SP> <decimal-integer>
[<SP> R <SP> <decimal-integer>] <CRLF>
REST <SP> <marker> <CRLF> 指定重新下在的字节数
RNFR <SP> <pathname> <CRLF> 指定需要改名的原文件
RNTO <SP> <pathname> <CRLF> 指定需要改名的新文件名
ABOR <CRLF> 取消前一指令
DELE <SP> <pathname> <CRLF> 在服务器上删除指定文件
RMD <SP> <pathname> <CRLF> 在服务器上删除指定目录
MKD <SP> <pathname> <CRLF> 在服务器上创建目录
PWD <CRLF> 显示当前目录
LIST [<SP> <pathname>] <CRLF> 列出当前目录下所有文件和子目录
NLST [<SP> <pathname>] <CRLF> 列出当前目录下所有文件和子目录的名字
SITE <SP> <string> <CRLF>
SYST <CRLF>
STAT [<SP> <pathname>] <CRLF>
HELP [<SP> <string>] <CRLF> 获取帮助
NOOP <CRLF>
  FTP Security commands and arguments
  AUTH <SP> <mechanism-name> <CRLF>
ADAT <SP> <base64data> <CRLF>
PROT <SP> <prot-code> <CRLF>
PBSZ <SP> <decimal-integer> <CRLF>
MIC <SP> <base64data> <CRLF>
CONF <SP> <base64data> <CRLF>
ENC <SP> <base64data> <CRLF>
  <mechanism-name> ::= <string>
<base64data> ::= <string>
; must be formatted as described in section 9
<prot-code> ::= C | S | E | P
<decimal-integer> ::= any decimal integer from 1 to (2^32)-1
  
  
  上面是一些ftp协议支持的命令,下面介绍一些使用实例
  FTP 协议命令实战
  废话就不多说了,下面是用TELNET连接Serv-U测试成功的例子
  下载文件
---------------------------------------------------------------------------
TELNET 127.0.0.1 21
220 Serv-U FTP Server v4.0 for WinSock ready...
  USER ADMIN
331 User name okay, need password.
  PASS ****
230 User logged in, proceed.
  PASV
227 Entering Passive Mode <127,0,0,1,4,191>
  REST 0
350 Restarting at 0. Send STORE or RETRIEVE.
  RETR test.rar
150 Opening ASCII mode data connection for test.rar <94370 bytes>.
226 Transfer complete.
  
  覆盖方式上传文件
---------------------------------------------------------------------------
TELNET 127.0.0.1 21
220 Serv-U FTP Server v4.0 for WinSock ready...
  USER ADMIN
331 User name okay, need password.
  PASS ****
230 User logged in, proceed.
  STOR test.dat
150 Opening ASCII mode data connection for test.dat
  PASV
227 Entering Passive Mode <127,0,0,1,4,191>
  ...创建另一条连接到指定端口然后向其发送数据...
  
  追加方式上传文件
---------------------------------------------------------------------------
TELNET 127.0.0.1 21
220 Serv-U FTP Server v4.0 for WinSock ready...
  USER ADMIN
331 User name okay, need password.
  PASS ****
230 User logged in, proceed.
  APPE test.dat
150 Opening ASCII mode data connection for test.dat
  PASV
227 Entering Passive Mode <127,0,0,1,4,191>
  ...创建另一条连接到指定端口然后向其发送数据...
  
  重命名文件和目录
---------------------------------------------------------------------------
TELNET 127.0.0.1 21
220 Serv-U FTP Server v4.0 for WinSock ready...
  USER ADMIN
331 User name okay, need password.
  PASS ****
230 User logged in, proceed.
  RNFR sss.rar
350 File or directory exists; ready for destination name
  RNTO stock.rar
250 RNTO command successfull.
  
  删除文件
---------------------------------------------------------------------------
TELNET 127.0.0.1 21
220 Serv-U FTP Server v4.0 for WinSock ready...
  USER ADMIN
331 User name okay, need password.
  PASS ****
230 User logged in, proceed.
  DELE test.dat
250 DELE command successfull.
  
  建立和删除目录
---------------------------------------------------------------------------
TELNET 127.0.0.1 21
220 Serv-U FTP Server v4.0 for WinSock ready...
  USER ADMIN
331 User name okay, need password.
  PASS ****
230 User logged in, proceed.
  MKD myDir
257 "/myDir" directory created.
  RMD myDir
250 RMD command successfull.
  
  退出连接
---------------------------------------------------------------------------
TELNET 127.0.0.1 21
220 Serv-U FTP Server v4.0 for WinSock ready...
  USER ADMIN
331 User name okay, need password.
  PASS ****
230 User logged in, proceed.
  QUIT
221 Goodbye!
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