比較Powershell腳本中斷前后多個子目錄的大小

我是Powershell的初學者，也請原諒我的英語不是最好的。

我有一個目錄，里面有幾個像這樣的子目錄

目錄

我的目標是定位在腳本運行時更新的目錄。所以我做了這個腳本

$path = "C:\Users\s611284\Desktop\archive"

#Check that the directories have the correct name and calculate their size

Get-ChildItem -Force $path -ErrorAction SilentlyContinue -Directory | foreach {
     
  $Size = (Get-ChildItem $_.fullname -Recurse -ErrorAction SilentlyContinue | Measure-Object -Property Length -Sum).Sum/ 1Kb

  $FolderName = $_.BaseName -match '1B(\d{6})_LEAP 1A version aout2021_(\d{4})-(\d{2})-(\d{2})T(\d{2})h(\d{2})m(\d{2})s_S(\d{6})' -or $_.BaseName -match '1B(\d{6})_SML 10_LEAP 1A version aout2021_(\d{4})-(\d{2})-(\d{2})T(\d{2})h(\d{2})m(\d{2})s_S(\d{5})' 

  $Folder = $_.BaseName

  if ($FolderName -eq "true") {
    write-host(" name $Folder is correct, $Size Kb")
  }
  else {
    write-host( "name $Folder is incorrect")
  }
}  

#Break 

Start-Sleep -Seconds 30

write-host( "end of break")
 

#directory size calculation after the break

Get-ChildItem -Force $path -ErrorAction SilentlyContinue -Directory | foreach {
     
  $Size1 = (Get-ChildItem $_.fullname -Recurse -ErrorAction SilentlyContinue | Measure-Object -Property Length -Sum).Sum/ 1Kb

  $FolderName1 = $_.BaseName -match '1B(\d{6})_LEAP 1A version aout2021_(\d{4})-(\d{2})-(\d{2})T(\d{2})h(\d{2})m(\d{2})s_S(\d{6})' -or $_.BaseName -match '1B(\d{6})_SML 10_LEAP 1A version aout2021_(\d{4})-(\d{2})-(\d{2})T(\d{2})h(\d{2})m(\d{2})s_S(\d{5})' 

  $Folder1 = $_.BaseName

  if ($FolderName1 -eq "true") {
    write-host("name $Folder1 is correct, $Size1 Kb")
  }
  else {
    write-host( "name $Folder1 is incorrect")
  }
}

所有這一切都很好

所以現在想比較一下break前后子目錄的大小，知道哪些已經更新了

我試過了

if ( $FolderSize -eq $FolderSize1 )
{
    Write-Output $True
}

Else
{ 
  Write-Output $False
}

在我的第二個街區結束時，但它不起作用..

我也嘗試過 Compare-object 但我認為這個命令對我的情況沒有幫助

我希望你們能理解我的帖子并幫助我謝謝！

uj5u.com熱心網友回復：

如果我理解正確，您正在尋找過濾那些大小在 30 秒后發生變化的檔案夾，如果是這種情況，您可以使用一個函式，這樣您就不需要重復您的代碼。您可以讓您的函式回傳一個哈希表，其中鍵是檔案夾的絕對路徑，值是它們的計算大小，一旦您擁有兩個結果（30 秒之前和 30 秒后），您可以對兩個哈希表進行比較，輸出具有檔案夾絕對路徑、之前大小和之后大小的新物件，僅適用于其計算大小已更改的檔案夾。

function GetFolderSize {
    [cmdletbinding()]
    param($path)
    
    $map = @{}
    Get-ChildItem $path -Directory -Force | ForEach-Object {
        $Size = (Get-ChildItem $_.Fullname -Recurse | Measure-Object -Property Length -Sum).Sum / 1Kb
        $FolderName = $_.BaseName -match '1B(\d{6})_LEAP 1A version aout2021_(\d{4})-(\d{2})-(\d{2})T(\d{2})h(\d{2})m(\d{2})s_S(\d{6})' -or $_.BaseName -match '1B(\d{6})_SML 10_LEAP 1A version aout2021_(\d{4})-(\d{2})-(\d{2})T(\d{2})h(\d{2})m(\d{2})s_S(\d{5})'
        if ($FolderName) {
            $map[$_.FullName] = $size
        }
    }
    if($map) { $map }
}

$path = "C:\Users\s611284\Desktop\archive"

$before = GetFolderSize $path -ErrorAction SilentlyContinue
Start-Sleep -Seconds 30
$after = GetFolderSize $path -ErrorAction SilentlyContinue

foreach($key in $after.PSBase.Keys) {
    if($before[$key] -ne $after[$key]) {
        # this is a folder with a different size than before
        [PSCustomObject]@{
            FullName   = $key
            SizeBefore = $before[$key]
            SizeAfter  = $after[$key]
        }
    }
}

uj5u.com熱心網友回復：

不要從圣地亞哥的有用答案中拿走，而是要提供替代解決方案，這是我的看法：

$path  =  "C:\Users\s611284\Desktop\archive"
$count = 0 
$hashMap = @{}
While ($count -lt 2) {
    Get-ChildItem -Path $path -Directory | 
        ForEach-Object -Begin {
            $count  
            $toMatch = "1B(\d{6})_LEAP 1A version aout2021_(\d{4})-(\d{2})-(\d{2})T(\d{2})h(\d{2})m(\d{2})s_S(\d{6})|1B(\d{6})_SML 10_LEAP 1A version aout2021_(\d{4})-(\d{2})-(\d{2})T(\d{2})h(\d{2})m(\d{2})s_S(\d{5})" 
        } -Process {
            $folderMatch = $_.BaseName -match $toMatch
                if ($folderMatch) {
                    $size = (Get-ChildItem -Path $_.FullName -Recurse -EA 0 | Measure-Object -Property "Length" -Sum).Sum / 1kb
                    if (-not$hashMap.ContainsKey($_.BaseName))  {
                        $hashMap.Add($_.BaseName,$size)
                    }
                    if ($count -ge 2) {
                        if ($hashMap[$_.BaseName] -ne $size) {
                            $_.BaseName   " "   "is a different size" 
                        }
                    }
                }
        } -End {
            if ($count -ne 2) {
                Start-Sleep -Seconds 30
            }
        }
}

就個人而言，我討厭重復使用代碼，并且覺得如果你發現自己重復代碼（復制/粘貼），總能做些什么。

我對你的問題是：

1. 這些檔案夾名稱不是很獨特嗎？
2. 你不能用它來代替通配符運算式嗎？
   • IE：$_.BaseName -like '*1A version aout2021*'
   • 一切以“清潔”代碼的名義。哈哈

uj5u.com熱心網友回復：

我想我理解你所有的代碼。但我不確定如何處理函式和哈希表。

現在，我只需要將 30 秒前后大小相同的檔案夾移動到另一個目錄。

我試過了

Copy-Item $path -Destination $targetFolderPath -Recurse

這是我認為很好的解決方案，但它會復制我所有的檔案夾，包括那些沒有正確命名的檔案夾和那些大小已更改的檔案夾。

如何包含條件？

標籤：正则表达式 电源外壳 目录 比较 子目录

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