下载所有.bak文件 [英] Download all the .bak files

问题描述

我正在尝试使用凭据从网页下载所有.bak文件。但有时候，它工作正常，有时却不行。下面是我正在使用的脚本：

I am trying to download all the .bak files from the webpage using credentials. But sometime, it is working fine and sometimes its not. Below is the script which I am using:

$ Username ='xxxx'

$ Password ='yyyyy'



$ webclient = New-Object System.Net.webclient

$ source =" https：//somesite.com/"

$ destination =" E：\ myfolder"

＃以下行返回网页中的链接

$ WebClient.Credentials = New-Object System.Net.Networkcredential（$用户名，$密码）

$ testcode1 = $ webclient.downloadstring（$ source）-split"< a \\\ +" | ％{[void]（$ _ -match" ^ href = [`'`"]（[^`'`"> \s] * .bak）"）; $ match [1]}



$
foreach（$ test in $ testcode1）{

   ;&NBSP; ＃$ Destination =" $ destination \ $ line"

    ＃如果新目录不存在，请创建一个新目录



    if（！（Test-Path $ Destination））

    

    {

        New-Item $ Destination -type目录-Force

    }¥b $ b    

  $ WebClient.Credentials = New-Object System.Net.Networkcredential（$ Username，$ Password） 

    $ webclient.downloadfile（$ source + $ line，$ destination + $ line）

}

$Username = 'xxxx'
$Password = 'yyyyy'

$webclient = New-Object System.Net.webclient
$source = "https://somesite.com/"
$destination = "E:\myfolder"
#The following line returns the links in the webpage
$WebClient.Credentials = New-Object System.Net.Networkcredential($Username, $Password)
$testcode1=$webclient.downloadstring($source) -split "<a\s+" | %{ [void]($_ -match "^href=[`'`"]([^`'`">\s]*.bak)"); $matches[1]}


foreach ($line in $testcode1) {
    #$Destination = "$destination\$line"
    #Create a new directory if it doesn't exist

    if (!(Test-Path $Destination))
    
    {
        New-Item $Destination -type directory -Force
    }
    
 $WebClient.Credentials = New-Object System.Net.Networkcredential($Username, $Password)  
    $webclient.downloadfile($source + $line , $destination + $line )
}

每次我得到的执行时误差低于此值。

Everytime I am getting the below error while executing.

无法索引到空数组。

在C：\ Users \ uswmnl09 \Desktop \Download\Test.ps1：37 char：118

+ ..."> \s] * .bak）"）; $匹配[1]}

+&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP ;&NBSP; ~~~~~~~~~~~

    + CategoryInfo          ：InvalidOperation：（:) []，RuntimeException

    + FullyQualifiedErrorId：NullArray

 

无法索引到空数组。

在C：\ Users \ uswmnl09 \Desktop \\ \\Download\Test.ps1：37 char：118

+ ..."> \s] * .bak）"）; $匹配[1]}

+&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP ;&NBSP; ~~~~~~~~~~~

    + CategoryInfo          ：InvalidOperation：（:) []，RuntimeException

    + FullyQualifiedErrorId：NullArray

 

无法索引到空数组。

在C：\ Users \ uswmnl09 \Desktop \\ \\Download\Test.ps1：37 char：118

+ ..."> \s] * .bak）"）; $匹配[1]}

+&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP ;&NBSP; ~~~~~~~~~~~

    + CategoryInfo          ：InvalidOperation：（:) []，RuntimeException

    + FullyQualifiedErrorId：NullArray

Cannot index into a null array.
At C:\Users\uswmnl09\Desktop\Download\Test.ps1:37 char:118
+ ... ">\s]*.bak)"); $matches[1]}
+                    ~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : NullArray
 
Cannot index into a null array.
At C:\Users\uswmnl09\Desktop\Download\Test.ps1:37 char:118
+ ... ">\s]*.bak)"); $matches[1]}
+                    ~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : NullArray
 
Cannot index into a null array.
At C:\Users\uswmnl09\Desktop\Download\Test.ps1:37 char:118
+ ... ">\s]*.bak)"); $matches[1]}
+                    ~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : NullArray

有时我收到以下错误：

异常调用" DownloadString"用"1"表示"1"。参数："远程服务器返回错误：（407）需要代理验证。"\\ n \\ b
在C：\ Users \ uswmnl09 \Desktop \Download \ Test。 ps1：37 char：1

+ $ testcode1 = $ webclient.downloadstring（$ source）-split"< a \\\ +" | ％{[void]（$ _ -mat ...

+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~

&NBSP;&NBSP;&NBSP; + CategoryInfo&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;：NotSpecified：（:) []，MethodInvocationException

    + FullyQualifiedErrorId：WebException

Exception calling "DownloadString" with "1" argument(s): "The remote server returned an error: (407) Proxy Authentication Required."
At C:\Users\uswmnl09\Desktop\Download\Test.ps1:37 char:1
+ $testcode1=$webclient.downloadstring($source) -split "<a\s+" | %{ [void]($_ -mat ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : WebException

对此有任何帮助。

推荐答案

行" 

The line " 

testcode1 =

testcode1=

webclient.downloadstring（

webclient.downloadstring(

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