New-Object System.IO.FileSystemWatcher multiple servers

Question

我有一个基于新对象System.IO.FileSystemWatcher的脚本，它在我的家庭文件服务器上监视文件夹中的新文件，并运行外部应用程序，但现在我将扩展新对象System.IO.FileSystemWatcher的用法，以监视一组多个服务器(来自.csv的输入)。

我已经让下面的代码在检测事件时工作，但是当检测到新文件时，它会多次为新文件生成警报。你知道我怎么才能让它只产生一个警报吗？我在想这就是我的循环结构？

感谢任何人的帮助！

$Servers = import-csv "C:\Scripts\Servers.csv"

while($true) {

ForEach ($Item in $Servers) { 

# Unregister-Event $changed.Id -EA 0
$Server = $($Item.Server)
write-host "Checking \\$Server\c$\Scripts now"

#$folder = "c\Scripts"
$filter = "*.html"

$watcher = New-Object System.IO.FileSystemWatcher
$watcher.Path = "\\$Server\c$\Scripts\"
$watcher.Filter = "*.html"
$watcher.IncludeSubdirectories = $False
$watcher.EnableRaisingEvents = $true

        $created = Register-ObjectEvent $watcher "Created" -Action {
        write-host "A new file has been created on $Server $($eventArgs.FullPath) -ForegroundColor Green

    }

} #ForEach

write-host "Monitoring for new files. Sleeping for 5 seconds"
Start-Sleep -s 5

} #While

这是我的脚本的单服务器版本，基本上，我想做同样的事情，除了在一堆服务器上运行：

$SleepTimer = 15
$watcher = New-Object System.IO.FileSystemWatcher
$watcher.Path = "\\FILESERVER\NEWSTUFF\"
$watcher.Filter = "*.html"
$watcher.IncludeSubdirectories = $true
$watcher.EnableRaisingEvents = $true

### DEFINE ACTIONS AFTER A EVENT IS DETECTED
$action = {
$path = $Event.SourceEventArgs.FullPath
$changeType = $Event.SourceEventArgs.ChangeType
$logline = "$changeType, $path"
write-host "$LogLine created"

**RUN EXTERNAL PROGRAM HERE**

add-content -Value $LogLine -path "\\Fileserver\Log.txt"

}    

### DECIDE WHICH EVENTS SHOULD BE WATCHED + SET CHECK FREQUENCY  
$created = Register-ObjectEvent $watcher "Created" -Action $action

while ($true) {
write-warning "no new files detected. Sleeping for $SleepTimer seconds ..."
start-sleep -s $SleepTimer
}

Answer 1

我认为每次执行while循环时，都会创建新的文件系统监视器，该监视器会生成多个警报，而在您的单服务器版本的脚本中不会发生.which

你能检查一下这个吗：

$Servers = import-csv "C:\Scripts\Servers.csv"

ForEach ($Item in $Servers) { 
    # Unregister-Event $changed.Id -EA 0
    $Server = $($Item.Server)
    write-host "Checking \\$Server\c$\Scripts now"

    #$folder = "c\Scripts"
    $filter = "*.html"

    $watcher = New-Object System.IO.FileSystemWatcher
    $watcher.Path = "\\$Server\c$\Scripts\"
    $watcher.Filter = "*.html"
    $watcher.IncludeSubdirectories = $False
    $watcher.EnableRaisingEvents = $true

    $created = Register-ObjectEvent $watcher "Created" -Action {
        write-host "A new file has been created on $Server $($eventArgs.FullPath)" -ForegroundColor Green
    }
} 


while ($true) {
    write-host "Monitoring for new files. Sleeping for 5 seconds"
    Start-Sleep -s 5
} #While