Question

我正在尝试使用powershell编写脚本来获取文件夹/文件大小，如下所述

$StartFolder = "D:\"
$Output = "C:\Temp\test-d.csv"

Add-Content -Value "Folder Path|Size" -Path $Output

$colItems = (Get-ChildItem $startFolder -Recurse | Measure-Object -Property Length -Sum)
"$StartFolder -- " + "{0:N2}" -f ($colItems.Sum / 1MB) + " MB" # | Out-File $Output

$colItems = (Get-ChildItem $startFolder -Recurse | Where-Object {$_.PSIsContainer -eq $True} | Sort-Object)
foreach ($i in $colItems) {
    $subFolderItems = (Get-ChildItem $i.FullName -Recurse | Measure-Object -Property Length -Sum)
    $i.FullName + "|" + "{0:N2}" -f ($subFolderItems.Sum / 1MB) + " MB" | Out-File $Output -Append
}

我收到的错误如下所述：

Measure-Object : The property "Length" cannot be found in the input for any
objects.
At line:12 char:65
+         $subFolderItems = (Get-ChildItem $i.FullName -Recurse | Measure-Object - ...
+
    + CategoryInfo          : InvalidArgument: (:) [Measure-Object], PSArgumentException
    + FullyQualifiedErrorId : GenericMeasurePropertyNotFound,Microsoft.PowerShell.Commands.MeasureObjectCommand

Measure-Object : The property "Length" cannot be found in the input for any
objects.
At line:12 char:65
+         $subFolderItems = (Get-ChildItem $i.FullName -Recurse | Measure-Object - ...
+
    + CategoryInfo          : InvalidArgument: (:) [Measure-Object], PSArgumentException
    + FullyQualifiedErrorId : GenericMeasurePropertyNotFound,Microsoft.PowerShell.Commands.MeasureObjectCommand

此外，当我定位C：驱动器时，我在某些系统文件上获得“拒绝访问”：

Get-ChildItem : Access to the path 'C:\Windows\System32\LogFiles\WMI\RtBackup'
is denied.
At line:12 char:28
+         $subFolderItems = (Get-ChildItem $i.FullName -Recurse | Measure-Object - ...
+                            
    + CategoryInfo          : PermissionDenied: (C:\Windows\Syst...es\WMI\RtBackup:String) [Get-ChildItem], UnauthorizedAccessException
    + FullyQualifiedErrorId : DirUnauthorizedAccessError,Microsoft.PowerShell.Commands.GetChildItemCommand

Answer 1

DirectoryInfo个对象没有属性Length，因此您需要将大小计算限制为文件。

$colItems = Get-ChildItem $startFolder -Recurse -Force |
            Where-Object { -not $_.PSIsContainer } |
            Measure-Object -Property Length -Sum

使用Scripting.FileSystemObject COM对象可能更容易，因为这将允许您获取具有其内容大小的目录对象。您可能希望使用Export-Csv将数据导出为CSV。使用calculated properties构建所需的对象。

$fso = New-Object -COM 'Scripting.FileSystemObject'

$folders = @($StartFolder)
$folders += Get-ChildItem $StartFolder -Recurse -Force |
            Where-Object { $_.PSIsContainer } |
            Select-Object -Expand FullName

$folders |
    Select-Object @{n='Path';e={$_}}, @{n='Size';e={$fso.GetFolder($_).Size}} |
    Export-Csv $Output -Delimiter '|' -NoType

PowerShell查找文件夹/文件大小

1 个答案: