使用powershell删除回收站中的旧文件

Question

好的，我有一个我正在用 powershell 编写的脚本，它将删除回收站中的旧文件。我希望它从回收站中删除超过 2 天前删除的所有文件。我对此做了很多研究，但没有找到合适的答案。

这是我目前所拥有的（在网上找到了脚本，我不太了解powershell）：

$Path = 'C' + ':\$Recycle.Bin'
Get-ChildItem $Path -Force -Recurse -ErrorAction SilentlyContinue |
#Where-Object { $_.LastWriteTime -lt (Get-Date).AddDays(-3) } |
Remove-Item -Recurse -exclude *.ini -ErrorAction SilentlyContinue

它运行良好，但有一个例外，它检查文件参数“LastWriteTime”。如果用户在修改文件的同一天删除了文件，那就太棒了。否则失败。

如何修改此代码，以便它检查文件何时被删除，而不是何时被写入。

-附带说明，如果我从 Microsoft Server 2008 上的管理员帐户运行此脚本，它将适用于所有用户的回收站还是只适用于我的？

---

答案：

对我有用的代码是：

$Shell = New-Object -ComObject Shell.Application
$Global:Recycler = $Shell.NameSpace(0xa)

foreach($item in $Recycler.Items())
{
    $DeletedDate = $Recycler.GetDetailsOf($item,2) -replace "\u200f|\u200e",""
    $dtDeletedDate = get-date $DeletedDate 
    If($dtDeletedDate -lt (Get-Date).AddDays(-3))
    {
        Remove-Item -Path $item.Path -Confirm:$false -Force -Recurse
    }#EndIF
}#EndForeach item

它对我来说很棒，但是还有 2 个问题......如何使用多个驱动器执行此操作？这适用于所有用户还是仅适用于我？

Answer 1

WMF 5 包含新的“Clear-RecycleBin”cmdlet。

PS> Clear-RecycleBin -DriveLetter C:\

Answer 2

这两行将清空所有文件回收站：

$Recycler = (New-Object -ComObject Shell.Application).NameSpace(0xa)
$Recycler.items() | foreach { rm $_.path -force -recurse }

Answer 3

这篇文章回答了你所有的问题

http://baldwin-ps.blogspot.be/2013/07/empty-recycle-bin-with-retention-time.html

后人代码：

# ----------------------------------------------------------------------- 
#
#       Author    :   Baldwin D.
#       Description : Empty Recycle Bin with Retention (Logoff Script)
#     
# -----------------------------------------------------------------------

$Global:Collection = @()

$Shell = New-Object -ComObject Shell.Application
$Global:Recycler = $Shell.NameSpace(0xa)

$csvfile = "\\YourNetworkShare\RecycleBin.txt"
$LogFailed = "\\YourNetworkShare\RecycleBinFailed.txt"


function Get-recyclebin
{ 
    [CmdletBinding()]
    Param
    (
        $RetentionTime = "7",
        [Switch]$DeleteItems
    )

    $User = $env:USERNAME
    $Computer = $env:COMPUTERNAME
    $DateRun = Get-Date

    foreach($item in $Recycler.Items())
        {
        $DeletedDate = $Recycler.GetDetailsOf($item,2) -replace "\u200f|\u200e","" #Invisible Unicode Characters
        $DeletedDate_datetime = get-date $DeletedDate   
        [Int]$DeletedDays = (New-TimeSpan -Start $DeletedDate_datetime -End $(Get-Date)).Days

        If($DeletedDays -ge $RetentionTime)
            {
            $Size = $Recycler.GetDetailsOf($item,3)

            $SizeArray = $Size -split " "
            $Decimal = $SizeArray[0] -replace ",","."
            If ($SizeArray[1] -contains "bytes") { $Size = [int]$Decimal /1024 }
            If ($SizeArray[1] -contains "KB") { $Size = [int]$Decimal }
            If ($SizeArray[1] -contains "MB") { $Size = [int]$Decimal * 1024 }
            If ($SizeArray[1] -contains "GB") { $Size = [int]$Decimal *1024 *1024 }

       $Object = New-Object Psobject -Property @{
                Computer = $computer
                User = $User
                DateRun = $DateRun
                Name = $item.Name
                Type = $item.Type
                SizeKb = $Size
                Path = $item.path
                "Deleted Date" = $DeletedDate_datetime
                "Deleted Days" = $DeletedDays }

            $Object

                If ($DeleteItems)
                {
                    Remove-Item -Path $item.Path -Confirm:$false -Force -Recurse

                    if ($?)
                    {
                        $Global:Collection += @($object)
                    }
                    else
                    {
                        Add-Content -Path $LogFailed -Value $error[0]
                    }
                }#EndIf $DeleteItems
            }#EndIf($DeletedDays -ge $RetentionTime)
}#EndForeach item
}#EndFunction

Get-recyclebin -RetentionTime 7 #-DeleteItems #Remove the comment if you wish to actually delete the content


if (@($collection).count -gt "0")
{
$Collection = $Collection | Select-Object "Computer","User","DateRun","Name","Type","Path","SizeKb","Deleted Days","Deleted Date"
$CsvData = $Collection | ConvertTo-Csv -NoTypeInformation
$Null, $Data = $CsvData

Add-Content -Path $csvfile -Value $Data
}

[System.Runtime.Interopservices.Marshal]::ReleaseComObject($shell)

#ScriptEnd

Answer 4

必须自己对此进行一些研究，回收站包含两个文件，用于在 win 10 中每个驱动器上删除的每个文件（在 win 7 中文件是原样所以这个脚本太多了，需要减少, 特别是对于 powershell 2.0, win 8 untested), 删除时创建的信息文件 $I (非常适合确定删除日期) 和原始文件 $R, 我发现 com 对象方法会忽略比我喜欢的更多的文件但从好的方面来说，我对删除的原始文件感兴趣，所以经过一番探索后，我发现信息文件的简单获取内容包括原始文件位置，在用一些正则表达式和想出了这个：

# Refresh Desktop Ability
$definition = @'
    [System.Runtime.InteropServices.DllImport("Shell32.dll")] 
    private static extern int SHChangeNotify(int eventId, int flags, IntPtr item1, IntPtr item2);
    public static void Refresh() {
        SHChangeNotify(0x8000000, 0x1000, IntPtr.Zero, IntPtr.Zero);    
    }
'@
Add-Type -MemberDefinition $definition -Namespace WinAPI -Name Explorer

# Set Safe within deleted days and get physical drive letters
$ignoreDeletedWithinDays = 2
$drives = (gwmi -Class Win32_LogicalDisk | ? {$_.drivetype -eq 3}).deviceid

# Process discovered drives
$drives | % {$drive = $_
    gci -Path ($drive+'\$Recycle.Bin\*\$I*') -Recurse -Force | ? {($_.LastWriteTime -lt [datetime]::Now.AddDays(-$ignoreDeletedWithinDays)) -and ($_.name -like "`$*.*")} | % {

        # Just a few calcs
        $infoFile         = $_
        $originalFile     = gi ($drive+"\`$Recycle.Bin\*\`$R$($infoFile.Name.Substring(2))") -Force
        $originalLocation = [regex]::match([string](gc $infoFile.FullName -Force -Encoding Unicode),($drive+'[^<>:"/|?*]+\.[\w\-_\+]+')).Value
        $deletedDate      = $infoFile.LastWriteTime
        $sid              = $infoFile.FullName.split('\') | ? {$_ -like "S-1-5*"}
        $user             = try{(gpv "HKLM:\Software\Microsoft\Windows NT\CurrentVersion\ProfileList\$($sid)" -Name ProfileImagePath).replace("$(gpv 'HKLM:\Software\Microsoft\Windows NT\CurrentVersion\ProfileList' -Name ProfilesDirectory)\",'')}catch{$Sid}

        #' Various info
        $originalLocation
        $deletedDate
        $user
        $sid
        $infoFile.Fullname
        ((gi $infoFile -force).length / 1mb).ToString('0.00MB')
        $originalFile.fullname
        ((gi $originalFile -force).length / 1mb).ToString('0.00MB')
        ""

        # Blow it all Away
        #ri $InfoFile -Recurse -Force -Confirm:$false -WhatIf
        #ri $OriginalFile -Recurse -Force -Confirm:$false- WhatIf
        # remove comment before two lines above and the '-WhatIf' statement to delete files
    }
}

# Refresh desktop icons
[WinAPI.Explorer]::Refresh()

Answer 5

这也适用于任务调度程序的脚本。

清除-RecycleBin -Force