FTP不支持目录的下载，不过FTP命令提供了mget命令，允许多文件下载，但每下载一个文件都需要确认，不能自动完成。本文主要介绍使用批处理，结合FTP的相关命令来实现批量文件的下载，以便达到目录下载的目的。
大致想法如下：
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ftp -s:filename hosts >result.txt 执行脚本,并将结果定向输出到result.txt
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脚本内容，如
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cd mydir
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ls
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bye
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可以将mydir命令列出
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然后使用批处理分析result.txt
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从150 Opening ASCII mode data connection for file list.的下一行开始算，直到226 Transfer complete都是要下载的内容
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然后用批处理加ftp脚本，使用get命令逐个下载
但实际过程中发现，在FTP脚本中使用get有问题，提示参数错误，无法使用。
查看了ftp的帮助ftp -?
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G:>ftp -?
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Transfers files to and from a computer running an FTP server service
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(sometimes called a daemon). Ftp can be used interactively.
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FTP [-v] [-d] [-i] [-n] [-g] [-s:filename] [-a] [-w:windowsize] [-A] [host]
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-v Suppresses display of remote server responses.
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-n Suppresses auto-login upon initial connection.
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-i Turns off interactive prompting during multiple file
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transfers.
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-d Enables debugging.
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-g Disables filename globbing (see GLOB command).
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-s:filename Specifies a text file containing FTP commands; the
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commands will automatically run after FTP starts.
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-a Use any local interface when binding data connection.
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-A login as anonymous.
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-w:buffersize Overrides the default transfer buffer size of 4096.
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host Specifies the host name or IP address of the remote
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host to connect to.
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Notes:
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- mget and mput commands take y/n/q for yes/no/quit.
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- Use Control-C to abort commands.
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发现 -i 参数可以去除mget的提示，经过测试，实现了如下脚本（使用了匿名登入，如果非匿名，可以修改登入脚本）：
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echo cd autoruns>ftp.txt
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echo mget *>>ftp.txt
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echo bye>>ftp.txt
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ftp -i -A -s:ftp.txt 10.1.103.10
不过，这只是下载了目录中的文件，如果有子目录，那还需要用dir命令输出，并转向输出到文本，用find来提取目录,如：
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echo cd autoruns>ftp.txt
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echo dir>>ftp.txt
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echo bye>>ftp.txt
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ftp -A -s:ftp.txt 10.1.103.10 |find "<DIR>">result.txt
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for /f "tokens=2,3*" %%i in (result.txt) do echo %%k
如有子文件夹，那就要深入编写了。
经过编写测试，实现如下脚本，运行环境WINXP SP2，运行通过，未载其它系统上测试过：
1、主要脚本ftpget.bat,更改前4个变量的相关信息，该脚本调用makeTree.bat，请参见2
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rem FTP服务器地址
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set host=10.1.103.10
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rem FTP登入名，如果匿名不用改
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set user=anonymous
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rem FTP登入密码，如果匿名不用改
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set pass=123456
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rem 需要下载的FTP目录，如果下载子目录以分格
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set dirname=目录1子目录
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set homedir=%cd%
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rem 生成FTP目录结构
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del tree.txt
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start /w cmd /c makeTree %dirname% 0
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del result*.txt
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for /f "delims=/" %%i in (tree.txt) do (
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rem 获取dirname的所有文件
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rem =============================
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cd %homedir%
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md %%i
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cd /d %%i
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echo %user%>ftp.txt
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echo %pass%>>ftp.txt
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echo cd %%i>>ftp.txt
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rem mget *.* 下载所有文件，但不能下载无扩展名的文件；
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rem 如果使用mget * 可以下载所有文件，但会把子目录的文件也下载过来
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echo mget *.*>>ftp.txt
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echo bye>>ftp.txt
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ftp -i -A -s:ftp.txt %host%
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del ftp.txt
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rem ==============================
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)
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cd %homedir%
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del tree.txt
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2、maketree.bat，生成FTP目录树
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rem 生成FTP目录结构
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rem 调用方法 maketree dir1dir2 n (n>=1)
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rem %1 == dir1dir2
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rem %2 == n
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set /a treetime=%2+1
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echo %1 >>tree.txt
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echo %user% >ftp%treetime%.txt
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echo %pass% >>ftp%treetime%.txt
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echo cd %1 >>ftp%treetime%.txt
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echo dir >>ftp%treetime%.txt
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echo bye >>ftp%treetime%.txt
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ftp -A -s:ftp%treetime%.txt %host% |find "<DIR>">result%treetime%.txt
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for /f "tokens=2,3*" %%i in (result%treetime%.txt) do (start /w cmd /c Maketree.bat %1%%k %treetime%)
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del result%treetime%.txt
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del ftp%treetime%.txt
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虽然已经实现，但仍然有小问题，就是mget *.* 不能下载无扩展名的程序；如果使用mget * 可以下载所有文件，但会把子目录的文件也下载过来。get在FTP脚本中出错也不知为何。
相关信息参考： [url=http://support.microsoft.com/default.aspx?scid=kb;zh-cn;96269]
使用FTP 批处理脚本[/url]，[url=http://www.microsoft.com/technet/prodtechnol/windowsserver2003/zh-chs/library/serverhelp/258062c8-790d-4772-a763-f8ebec886877.mspx]
Ftp 子命令[/url]
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