-LastBootupTime = -gtの場合、powershellを使用してコンピュータを再起動する10日

Question

ネットワーク上のコンピュータがどれくらいの期間オンになっているかを確認するスクリプトを作成しようとしています。 。私は毎週日曜日にタスクマネージャを使ってスクリプトを自動的に実行する予定です。

$clients = get-content "C:\Documents\lijstcomputers.txt" 

foreach ($client in $clients) { 

    if (test-connection -computername $client -BufferSize 16 -Count 1 -Quiet) { 
     write-Host $client is online 


     $uptime = (get-date) - (gcim Win32_OperatingSystem -computer $client).LastBootUpTime 

     $startTime = [Management.ManagementDateTimeConverter]::ToDateTime((gwmi Win32_OperatingSystem -computer $client).lastbootuptime) 


     if($uptime.days -ge 10) { 
      restart-computer -computername $client 
      add-content -path "c:\path\to\log.txt" -value "$client, $startTime, $uptime" 
     } 
    } 
    else { 
    write-Host $client is offline 
    } 
} 

しかし、今、私はこのエラーを取得しています：

gcim : WinRM cannot complete the operation. Verify that the specified computer name is valid, that the computer is accessible over the network, and 
that a firewall exception for the WinRM service is enabled and allows access from this computer. By default, the WinRM firewall exception for publ 
ic profiles limits access to remote computers within the same local subnet. 
At line:1 char:25 
+ $uptime = (get-date) - (gcim Win32_OperatingSystem -computer $client).LastBootUp ... 
+       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
    + CategoryInfo   : ConnectionError: (root\cimv2:Win32_OperatingSystem:String) [Get-CimInstance], CimException 
    + FullyQualifiedErrorId : HRESULT 0x80338126,Microsoft.Management.Infrastructure.CimCmdlets.GetCimInstanceCommand 
    + PSComputerName  : ASND0042 

Cannot find an overload for "op_Subtraction" and the argument count: "2". 
At line:1 char:1 
+ $uptime = (get-date) - (gcim Win32_OperatingSystem -computer $client).LastBootUp ... 
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
    + CategoryInfo   : NotSpecified: (:) [], MethodException 
    + FullyQualifiedErrorId : MethodCountCouldNotFindBest 

Answer 1

すでにいくつかの部分がカバーされてしまったので、このISN私は今、このような何かを持っている@vonPryzへ

感謝'ちょうどPLZは私にコードを与えて、助けを借りている。それでは、スクリプト全体の見方を概説しましょう。

# Write computer names into a file, one per row for easier management 
$clients = get-content "c:\ListOfComputers.txt" 

foreach ($client in $clients) { 
# If computer's not up, there's no need to check uptime 
    if (test-connection -computername $client -BufferSize 16 -Count 1 -Quiet) { 
     write-Host $client is online 

     # Get uptime 
     $uptime = (get-date) - (gcim Win32_OperatingSystem -computer $client).LastBootUpTime 
     # Get start time 
     $startTime = [Management.ManagementDateTimeConverter]::ToDateTime((gwmi Win32_OperatingSystem -computer $client).lastbootuptime) 

     # Restart the client if uptime's at least 10 days. 
     if($uptime.days -ge 10) { 
      restart-computer -computername $client 
     # Add client name, start date and uptime into a log file 
      add-content -path "c:\path\to\log.txt" -value "$client, $startTime, $uptime" 
     } 
    } 
    else { 
    write-Host $client is offline 
    } 
} 

このスケルトンは、いくつかのエラー処理と適切なCSV書き出しを追加することでさらに改善できます。