将CMD FTP请求转换为PowerShell FTP请求 [英] translate CMD FTP request to PowerShell FTP request

问题描述

我有一个完整的FTP请求保存到.CMD文件。

这是我的CMD脚本：

  @echo off 
 setlocal 
 set uname = exUsername 
 set passw = exPassword 
 set hostname = exHostname 
 set filespec = exSpec 
 echo％uname％> test.ftp 
 echo％passw％>> test.ftp 
 echo pwd>> test.ftp 
 echo cd exDir>> test.ftp 
 echo binary>> test.ftp 
 echo get％filespec％>> test.ftp 
 echo bye>> test.ftp 
 ftp -s：test.ftp％hostname％
 if errorlevel 1 pause 
 endlocal 
  

我要将上述代码翻译成PowerShell脚本。

这是我的PowerShell脚本：

  $ uname =exUsername
 $ passw =exPassword
 $ hostname =exHostname
 $ filespec = exSpec
 $ dir =exDir
 
 $ uri =ftp：// $ uname`：$ passw @ $ hostname / $ dir / $ filespec
 
 $ wc = New-Object System.Net.WebClient 
 $ wc.DownloadFile（$ uri，C：\）
  

我的PowerShell脚本到目前为止不工作。这是我的错误：

异常调用具有2参数的DownloadFile：异常
a我们bClient请求。 at line：20 char：17
+ $ wc.DownloadFile<<< （$ uri，C：\）
+ CategoryInfo：NotSpecified：（:) []，MethodInvocationException
+ FullyQualifiedErrorId：DotNetMethodException

我最初认为我指定了错误的FTP地址，所以我将 $ uri 的值输入到Windows资源管理器并进入服务器，但是注意，没有可用的文件夹可供访问。

但是，完全相同的 $ uri 文件路径

有关我错误地点的任何想法吗？

EDIT - 根据@KeithHill的要求，我重新编写了脚本，使用 ftpWebRequest 而不是 WebClient 。代码如下，但我得到以下错误：

异常调用GetResponse参数为0 remote
服务器返回错误：（431）431请求的安全机制不是
此时可用。 at line：23 char：39
+ $ ftpresponse = $ ftprequest.GetResponse<<< （）
+ CategoryInfo：NotSpecified：（:) []，MethodInvocationException
+ FullyQualifiedErrorId：DotNetMethodException术语Write-Out不能识别为cmdlet函数
脚本的名称文件或可操作程序。检查名称的拼写，或
（如果包含路径），请验证路径是否正确，然后重试
。

以下代码：

  $ uname =exUsername
 $ passw =exPassword
 $ hostname =exHostname
 $ filespec =exSpec
 $ dir =exDir
 
 $ uri =exUri
 
 
＃创建一个FTPWebRequest对象来处理与FTP服务器的连接
 $ ftprequest = [System.Net.FtpWebRequest] :: Create（$ uri）
 
＃设置请求的验证连接的网络凭据
 $ ftprequest.Credentials = New-Object System.Net.NetworkCredential（$ uname，$ passw）
 
＃将FTPWebRequest方法设置为ListDirectory 
 $ ftprequest .Method = [System.Net.WebRequestMethods + Ftp] :: ListDirectory 
 $ ftprequest.EnableSsl = $ True 
 $ ftprequest.UseBinary = $ True 
 $ ftprequest.UsePassive = $ True 
 $ ftprequest.KeepAlive = $ False 
 
 $ ftpresponse = $ ftprequest.GetResponse（）
 
 Write-Out $ ftpresponse.StatusCode 
 Write-Out $ ftpresponse .StatusDescription 
   
 
解决方案
  DownloadFile ，第二个参数必须是像c：\ $ filespec的文件名，而不仅仅是驱动器说明符。
 
I have a fully-working FTP request saved to a .CMD file.

Here is my CMD script:
@echo off
setlocal
set uname=exUsername
    set passw=exPassword
    set hostname=exHostname
    set filespec=exSpec
echo %uname%>                     test.ftp
echo %passw%>>                    test.ftp
echo pwd>>                        test.ftp
echo cd exDir>>                   test.ftp
echo binary>>                     test.ftp
echo get %filespec%>>             test.ftp
echo bye>>                        test.ftp
ftp -s:test.ftp %hostname%
if errorlevel 1 pause
endlocal
I want to translate the above code to a PowerShell script.

Here is my PowerShell script:
$uname = "exUsername"
$passw = "exPassword"
$hostname = "exHostname"
$filespec = "exSpec"
$dir = "exDir"

$uri = "ftp://$uname`:$passw@$hostname/$dir/$filespec"

$wc = New-Object System.Net.WebClient
$wc.DownloadFile($uri, "C:\")
My PowerShell script so far does not work. Here is my error:

  
Exception calling "DownloadFile" with "2" argument(s): "An exception
  occurred during a We bClient request." At line:20 char:17
  + $wc.DownloadFile <<<< ($uri, "C:\")
      + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
      + FullyQualifiedErrorId : DotNetMethodException
I initially thought that I am specifying the wrong FTP address, so I entered the $uri value into Windows explorer and got onto the server, but noticed that there were no (visible) folders available to access.

However, the exact same $uri filepath is getting me the requested file thru the CMD script.

Any ideas about where I'm going wrong?

EDIT - at the request of @KeithHill , I reworked the script to use ftpWebRequest instead of WebClient. Code is below, but I am getting the following error:

  
Exception calling "GetResponse" with "0" argument(s): "The remote
  server returned an error: (431) 431 Requ ested security mechanism not
  available at this time. ." At line:23 char:39
  + $ftpresponse = $ftprequest.GetResponse <<<< ()
      + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
      + FullyQualifiedErrorId : DotNetMethodException   The term 'Write-Out' is not recognized as the name of a cmdlet, function,
  script file, or operable program . Check the spelling of the name, or
  if a path was included, verify that the path is correct and try again
  .
Code below:
$uname = "exUsername"
$passw = "exPassword"
$hostname = "exHostname"
$filespec = "exSpec"
$dir = "exDir"

$uri = "exUri"


# Create an FTPWebRequest object to handle the connection to the FTP server
$ftprequest = [System.Net.FtpWebRequest]::Create($uri)

# Set the request's network credentials for an authenticated connection
$ftprequest.Credentials = New-Object System.Net.NetworkCredential($uname,$passw)

# Set FTPWebRequest method to ListDirectory
$ftprequest.Method = [System.Net.WebRequestMethods+Ftp]::ListDirectory
$ftprequest.EnableSsl = $True
$ftprequest.UseBinary = $True
$ftprequest.UsePassive = $True
$ftprequest.KeepAlive = $False

$ftpresponse = $ftprequest.GetResponse()

Write-Out $ftpresponse.StatusCode
Write-Out $ftpresponse.StatusDescription

解决方案
For DownloadFile, the second parameter must be a filename like "c:\$filespec" and not just a drive specifier.

                        
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