Question

您好我正在使用下面的scriptblock并且已经传递了变量本地文件夹，而在测试路径时它将来$Null。你能告诉我这里缺少什么

$ScriptBlockDir = {
    Param (
        [string]$samAccountName
    )

    If ($Env:ComputerName -eq 'fileserver101' )
    {
        $LocalFolderPath = 'H:\Users'
    }
    Else
    {
        $LocalFolderPath = 'D:\Users'
    }

    If (-not (test-path -Path "$LocalFolderPath\$samAccountName"))
    {
        Try
        {
            LogEntry "New Home Drive Folder"
            New-Item -Path $LocalFolderPath -Name $samAccountName -ItemType Directory >$Null
             return 1
         }
         catch
         {
            Write-Host "Failed with error"
            return -1
         }
     }

     Write-Host "already exists"
     Return 0
}

$result = Invoke-Command -Session $PSSession -ScriptBlock $ScriptBlockDir -ArgumentList $samAccountName

Answer 1

在你的例子中（除非你想提供更多背景知识）你不需要-Session $ PSSession，因为你的代码中没有声明，它会抛出关于$ null变量的错误。我会像这样重做你的代码：

$ScriptBlockDir = {
  Param ([string]$samAccountName)
  If ($Env:ComputerName -eq 'fileserver101' ) {
    $LocalFolderPath = 'H:\Users'
  }
  Else {
    $LocalFolderPath = 'D:\Users'
  }
  If (-not (Test-Path -Path "$LocalFolderPath\$samAccountName")) {
    try {
        New-Item -Path $LocalFolderPath -Name $samAccountName -ItemType Directory -ErrorAction Stop
        return 1
    }
    catch {
        Write-Host $_.Exception.Message
        return -1
    }
  }
  else {
    Write-Host "already exists"
    Return 0
  }

}

$result = Invoke-Command -ScriptBlock $ScriptBlockDir -ArgumentList $samAccountName
Write-Host $result

Powershell中的变量问题

1 个答案: