Question

我是PowerShell的新手，并没有太多的编程背景，只是尝试使用下面的power shell脚本来安装很少的软件。执行WinSCP软件时脚本会抛出错误。

错误消息

Program 'WinSCP-5.13.1-Setup.exe' failed to run: The file or directory is corrupted and unreadableAt line:1 char:1
+ D:\softwares\WinSCP-5.13.1-Setup.exe /
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~.
At line:1 char:1
+ D:\softwares\WinSCP-5.13.1-Setup.exe /SP
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ResourceUnavailable: (:) [], ApplicationFailedException
    + FullyQualifiedErrorId : NativeCommandFailed

脚本：

$source = 'D:\softwares' 

If (!(Test-Path -Path $source -PathType Container)) {New-Item -Path $source -ItemType Directory | Out-Null} 

$packages = @( 
@{title='7zip Extractor';url='http://downloads.sourceforge.net/sevenzip/7z920-x64.msi';Arguments=' /qn';Destination=$source}, 
@{title='Notepad++ 7.5.6';url='https://notepad-plus-plus.org/repository/7.x/7.5.6/npp.7.5.6.Installer.exe';Arguments=' /Q /S';Destination=$source} 
@{title='WinScp 5.13.1';url='https://winscp.net/download/WinSCP-5.13.1-Setup.exe';Arguments=' /';Destination=$source} 
) 

foreach ($package in $packages) { 
    $packageName = $package.title 
    $fileName = Split-Path $package.url -Leaf 
    $destinationPath = Join-Path $package.Destination $fileName

    If (!(Test-Path -Path $destinationPath -PathType Leaf)) { 

        Write-Host "Downloading $packageName" 
        $webClient = New-Object System.Net.WebClient 
        $webClient.DownloadFile($package.url,$destinationPath) 
        #Start-Sleep -s 10
    }

    #Once we've downloaded all our files lets install them. 
    foreach ($package in $packages) { 
        $packageName = $package.title 
        $fileName = Split-Path $package.url -Leaf 
        $destinationPath = Join-Path $package.Destination $fileName 
        $Arguments = $package.Arguments 
        Write-Output "Installing $packageName" 

        Invoke-Expression -Command "$destinationPath $Arguments" 
    }
}

Answer 1

https://winscp.net/download/WinSCP-5.13.1-Setup.exe不是下载网址。这是一个下载页面。您的代码下载HTML文档，而不是可执行的二进制文件。

您实际上无法从WinSCP站点自动下载二进制文件。它旨在防止滥用其带宽，用于像您这样的用途。

上面的URL只会获取可执行文件，因为它返回的HTML包含一个JavaScript代码，可将浏览器重定向到一次性下载URL。当然，您可以实现相同的功能（使用它返回的数据获取HTML并查找/生成下载URL）。但这是一种虐待。

使用PowerShell执行从HTTP服务器下载的二进制文件失败，并且＃34;文件或目录已损坏且无法读取＆＃34;

1 个答案: