計數目錄錯誤消息

Question

每當我在下面運行時，它會給出輸出，但如果我沒有輸入進程，它也會給出錯誤。任何想法我怎麼能「隱藏」出現的錯誤信息？

檢查目錄計數 讀取主機：發生類型爲「System.Management.Automation.Host.PromptingException」的錯誤。 在C：\用戶\拉拉\應用程序數據\本地的\ Temp \ 5820c1b7-ee6c-47f1-9a6c-06de6dc9e68f.ps1：2字符：20 + $源=讀主機< < < <「請輸入第一個目錄檢查「 + CategoryInfo：ResourceUnavailable：（:) [讀主持人]，PromptingException + FullyQualifiedErrorId：System.Management.Automation.Host.PromptingException，Microsoft.PowerShell.Commands.ReadHostCommand

Write-Host "Checking Directory Count" -ErrorAction SilentlyContinue 
$Source = Read-Host "Please enter first directory to check" 

If($Source) 
{ 
    Write-host "There are " (Get-ChildItem $Source).Count "items in the ""$Source"" directory" 
} 
Else 
{ 
    Write-Host "Please enter a directory" 
} 

更新：

感謝您的幫助。我基本上想要將下面的內容合併到另一個文件夾比較的腳本中。我需要知道我想檢查的目錄中有多少個文件以及不存在的文件。我有下面的代碼 - 我知道這是寫得非常糟糕！我只是不太清楚如何讓$ source和$ target進入相同的IF語句，所以最終導致了兩個IF語句的基本錯誤！

另外 - 是否有一種方法，而不是顯示=>和< =我顯示「不存在於$源」或「不存在於$目標」 - 我將發送此代碼給另一個團隊和不想混淆它們太多：

Write-Host "Checking Directory Count and Folder comparision" -ErrorAction SilentlyContinue 

$Source = Read-Host "Please enter Source directory to check" 
$Target = Read-Host "Please enter Target directory to check" 

$child1 = Get-ChildItem -Path $Source 
$child2 = Get-ChildItem -Path $Target 

Compare-Object $child1 -DifferenceObject $child2 

Write-Host "" 
If($source -and (Test-Path -Path $source -PathType Container)) 
{ 
    "There are $(@(Get-ChildItem $Source).Count) items in the '$Source' directory" 
} 
Else 
{ 
    Write-Host "Please enter a directory" 
} 
If($source -and (Test-Path -Path $Target -PathType Container)) 
{ 
    "There are $(@(Get-ChildItem $Target).Count) items in the '$Target' directory" 
} 
Else 
{ 
    Write-Host "Please enter a directory" 
} 


Write-Host "" 
Write-Host "Any symbols with '<=' mean that the file Does NOT exist in TARGET" 
Write-Host "Any symbols with '=>' mean that the file Does NOT exist in SOURCE" 

Answer 1

我建議你在嘗試列出其內容之前先測試輸入的路徑是否存在。我還要把結果到一個數組，如果使用的結果獲得-ChildItem是一個標量（只有一個對象），它不會有一個Count屬性：

$Source = Read-Host "Please enter first directory to check" 

If($source -and (Test-Path -Path $source -PathType Container)) 
{ 
    "There are $(@(Get-ChildItem $Source).Count) items in the '$Source' directory" 
} 
Else 
{ 
    Write-Host "Please enter a directory" 
} 

UPADTE：

我沒不要測試代碼，但需要對命令重新排序。此外，請在名稱屬性上進行比較：

$Source = Read-Host "Please enter Source directory to check" 
$Target = Read-Host "Please enter Target directory to check" 

If($source -and (Test-Path -Path $source -PathType Container)) 
{ 
    "There are $(@(Get-ChildItem $Source).Count) items in the '$Source' directory" 
} 
Else 
{ 
    Write-Host "Please enter a source directory" 
    return 
} 

If($source -and (Test-Path -Path $Target -PathType Container)) 
{ 
    "There are $(@(Get-ChildItem $Target).Count) items in the '$Target' directory" 
} 
Else 
{ 
    Write-Host "Please enter a Target directory" 
    return 
} 


$child1 = Get-ChildItem -Path $Source 
$child2 = Get-ChildItem -Path $Target 

Compare-Object $child1 -DifferenceObject $child2 -Property Name 

Write-Host "" 
Write-Host "Any symbols with '<=' mean that the file Does NOT exist in TARGET" 
Write-Host "Any symbols with '=>' mean that the file Does NOT exist in SOURCE"