计数目录错误消息

Question

每当我在下面运行它时，它都会给出输出，但如果我没有输入目录，它也会给出错误。知道如何“隐藏”出现的错误消息吗？

检查目录计数 Read-Host：发生了“System.Management.Automation.Host.PromptingException”类型的错误。 在 C:\Users\lara\AppData\Local\Temp\5820c1b7-ee6c-47f1-9a6c-06de6dc9e68f.ps1:2 字符:20 + $Source = 读取主机 <<<< “请输入第一个目录进行检查” + CategoryInfo : ResourceUnavailable: (:) [读取主机]，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：

感谢您的所有帮助。我基本上想将下面的内容合并到另一个执行文件夹比较的脚本中。我需要知道我想要检查的目录中有多少文件以及不存在的文件。我有下面的代码 - 我知道它写得真的很糟糕！我只是不太确定如何将 $source 和 $target 放入同一个 IF 语句中，因此最终犯了一个基本错误：有两个 IF 语句！

另外 - 有没有办法不显示 =>和 <= 我显示“$source 中不存在”或“$target 中不存在” - 我将将此代码发送给另一个团队，并且不想让他们太困惑：

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

我建议您在尝试列出其内容之前先测试输入的路径是否存在。我还将结果转换为数组，如果使用 Get-ChildItem 的结果是一个标量（仅一个对象），它将没有 count 属性：

$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：

我没有测试代码，但您需要重新排序命令。另外，对 Name 属性进行比较：

$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"