我得到这个错误。
Get-WmiObject : The RPC server is unavailable. (Exception from HRESULT: 0x800706BA) At F:\Code\powershell\network_shutdown\TurnNetworkOff.ps1:19 char:26 + Get-WmiObject <<<< -computername $computer Win32_NetworkAdapter -filter "AdapterTypeId =0" | % { + CategoryInfo : InvalidOperation: (:) [Get-WmiObject], COMException + FullyQualifiedErrorId : GetWMICOMException,Microsoft.PowerShell.Commands.GetWmiObjectCommand 这是我的代码
#Define variables used in this script $namespace = "root\WMI" $array = @() $exceptionarray = @() $computerlist = Get-Content F:\Code\powershell\network_shutdown\computer-list.csv foreach ($computer in $computerlist) { # Main Processing Section # Write-Host $computer if((Test-Connection -Cn $computer -BufferSize 16 -Count 1 -ea 0 -quiet)) { Try { #Write-Host $computer #Write-Host "Disable `"Allow the computer to turn off this device to save power`"" Get-WmiObject -computername $computer Win32_NetworkAdapter -filter "AdapterTypeId=0" | % { $strNetworkAdapterID=$_.PNPDeviceID.ToUpper() Get-WmiObject -class MSPower_DeviceEnable -computername $computer -Namespace $namespace | % { if($_.InstanceName.ToUpper().startsWith($strNetworkAdapterID)) { $_.Enable = $false $_.Put() | Out-Null } } } #Write-Host "Disable `"Allow this device to wake the computer`"" Get-WmiObject -computername $computer Win32_NetworkAdapter -filter "AdapterTypeId=0" | % { $strNetworkAdapterID=$_.PNPDeviceID.ToUpper() Get-WmiObject -class MSPower_DeviceWakeEnable -computername $computer -Namespace $namespace | % { if($_.InstanceName.ToUpper().startsWith($strNetworkAdapterID)){ $_.Enable = $false $_.Put() | Out-Null } } } #Write-Host "Disable `"Only allow a magic packet to wake the computer`"" Get-WmiObject -computername $computer Win32_NetworkAdapter -filter "AdapterTypeId=0" | % { $strNetworkAdapterID=$_.PNPDeviceID.ToUpper() Get-WmiObject -class MSNdis_DeviceWakeOnMagicPacketOnly -computername $computer -Namespace $namespace | % { if($_.InstanceName.ToUpper().startsWith($strNetworkAdapterID)){ $_.EnableWakeOnMagicPacketOnly = $false $_.Put() | Out-Null } } } } Catch [Exception] { Write-Host $computer + " WMIC ERROR" if ($_.Exception.GetType().Name -eq "COMException") { Write-Host $computer + " WMIC ERROR" } $output = new-object psobject $output | Add-Member noteproperty PCTag $computer [PSObject[]]$exceptionarray += $output } } else { Write-Host $computer + " OFFLINE" $output = new-object psobject $output | Add-Member noteproperty PCTag $computer [PSObject[]]$array += $output } $array | Export-Csv -Path F:\Code\powershell\network_shutdown\ResultsOffline.csv $exceptionarray | Export-Csv -Path F:\Code\powershell\network_shutdown\ResultsException.csv }
GetWMICOMException是一个非终止错误，这意味着使用默认的$ErrorActionPreference为Continue ， try块中的代码将在写出exception作为错误后继续执行
用try-catch块-ErrorAction Get-WmiObject调用，但要确保-ErrorAction设置为Stop ：
# Try-Catch block starts try { # Call Get-WmiObject Get-WmiObject -ComputerName $computer -Class "Win32_NetworkAdapter" -ErrorAction Stop } # If an Exception of the type COMException is thrown, execute this block catch [System.Runtime.InteropServices.COMException] { # You can inspect the error code to see what specific error we're dealing with if($_.Exception.ErrorCode -eq 0x800706BA) { # This is instead of the "RPC Server Unavailable" error Write-Error -Message "Your own custom message" } else { Write-Error -Message "Some other COMException was thrown" } } # If any other type of Exception is thrown, execute this block catch [System.Exception] { Write-Error -Message "Some other exception that's nothing like the above examples" } # When all of the above has executed, this block will execute finally { Write-Verbose "Get-WmiObject object was executed" }
或者，您可以在执行脚本之前将$ErrorActionPreference设置为Stop ：
# Before the rest of the script $ErrorActionPreference = Stop
有关try-catch-finally构造的更多帮助：
Get-Help about_Try_Catch_Finally -Full
有关$*Preferencevariables的更多帮助：
Get-Help about_Preference_variables -Full