電子メール通知で複数のコンピュータをログに記録する

Question

このPowerShellコードでは、コンピュータの一覧からイベントログを収集し、受信者に電子メールを送信します。

私の質問は、値/ログが集まったときにのみメールを送信するようにスクリプトを変更する方法です？

$logReport = "C:\Logs.html" 

# CSS style 
$css= "<style>" 
$css= $css+ "BODY{ text-align: center; background-color:white;}" 
$css= $css+ "TABLE{ font-family: 'Lucida Sans Unicode', 'Lucida Grande', Sans-Serif;font-size: 12px;margin: 10px;width: 100%;text-align: center;border-collapse: collapse;border-top: 7px solid #004466;border-bottom: 7px solid #004466;}" 
$css= $css+ "TH{font-size: 13px;font-weight: normal;padding: 1px;background: #cceeff;border-right: 1px solid #004466;border-left: 1px solid #004466;color: #004466;}" 
$css= $css+ "TD{padding: 1px;background: ##FFFFFF;border-right: 1px solid #004466;border-left: 1px solid #004466;color: #669;hover:black;}" 
$css= $css+ "TD:hover{ background-color:#e5f7ff;}" 
$css= $css+ "</style>" 

$StartDate = (get-date).AddDays(-12) 

$body = Get-Content 'servers.txt' | ForEach-Object { 
    Get-WinEvent -ComputerName $_ -FilterHashtable @{logname="System"; Level=1,2,3; starttime=$StartDate}  
} 

# Convert to HTML style 
$body | ConvertTo-HTML -Head $css MachineName,LogName,LevelDisplayName,ID,TimeCreated,Message > $logreport 

# EMAIL Properties 
$rcpts = "user@domain.com" 
$smtpServer = "smtp.domain.com" 
    $smtp = New-Object Net.Mail.SmtpClient($smtpServer) 
    $msg = New-Object Net.Mail.MailMessage 
    $msg.To.Add($rcpts) 
     $msg.From = "user@domain.com" 
    $msg.Subject = "Subject" 
     $msg.IsBodyHTML = $true 
     $msg.Body = get-content $logreport 
    $smtp.Send($msg) 
     $body = "Hello" 

Answer 1

だけ$bodyがif節使用して存在しているかどうかを確認します。

$logReport = "C:\Logs.html" 

# CSS style 
$css= "<style>" 
$css= $css+ "BODY{ text-align: center; background-color:white;}" 
$css= $css+ "TABLE{ font-family: 'Lucida Sans Unicode', 'Lucida Grande', Sans-Serif;font-size: 12px;margin: 10px;width: 100%;text-align: center;border-collapse: collapse;border-top: 7px solid #004466;border-bottom: 7px solid #004466;}" 
$css= $css+ "TH{font-size: 13px;font-weight: normal;padding: 1px;background: #cceeff;border-right: 1px solid #004466;border-left: 1px solid #004466;color: #004466;}" 
$css= $css+ "TD{padding: 1px;background: ##FFFFFF;border-right: 1px solid #004466;border-left: 1px solid #004466;color: #669;hover:black;}" 
$css= $css+ "TD:hover{ background-color:#e5f7ff;}" 
$css= $css+ "</style>" 

$StartDate = (get-date).AddDays(-12) 

$body = Get-Content 'servers.txt' | ForEach-Object { 
    Get-WinEvent -ComputerName $_ -FilterHashtable @{logname="System"; Level=1,2,3; starttime=$StartDate}  
} 

if ($body) 
{ 
    # Convert to HTML style 
    $body | ConvertTo-HTML -Head $css MachineName,LogName,LevelDisplayName,ID,TimeCreated,Message > $logreport 

    # EMAIL Properties 
    $rcpts = "user@domain.com" 
    $smtpServer = "smtp.domain.com" 
     $smtp = New-Object Net.Mail.SmtpClient($smtpServer) 
     $msg = New-Object Net.Mail.MailMessage 
     $msg.To.Add($rcpts) 
      $msg.From = "user@domain.com" 
     $msg.Subject = "Subject" 
      $msg.IsBodyHTML = $true 
      $msg.Body = get-content $logreport 
     $smtp.Send($msg) 
      $body = "Hello" 
}