Question

我想监控在文件夹中创建的新文件。当发生这种情况时，我想启动批处理文件（在下面的示例中，我只是在日志文件中写一行）。我不知道为什么这不起作用。

我的代码是：

$watcher = New-Object System.IO.FileSystemWatcher
$watcher.Path = "D:\"
$watcher.Filter = "*.*"
$watcher.IncludeSubdirectories = $true
$watcher.EnableRaisingEvents = $true  

$action = {
    $path = $Event.SourceEventArgs.FullPath
    $changeType = $Event.SourceEventArgs.ChangeType
    $logline = "$(Get-Date), $changeType, $path"

    if ($file.Name -like "Apertura") {
        Add-Content "C:\Users\F701845\Desktop\Apertura.txt" -Value $logline
    } else {
        Add-Content "C:\Users\F701845\Desktop\TestNO.txt" -Value $logline
    }
}

Register-ObjectEvent $watcher "Created" -Action $action
while ($true) {sleep 5}

Answer 1

这个很容易，你使用的是IF / ELSE中为空的变量。 $ path和$ changeType派生自$ Event，但$ file根本不存在。

首先看看你有什么，你会发现在这种情况下你可能会使用：$ Event.SourceEventArgs.Name。

$Event.SourceEventArgs | Get-Member

bool Equals(System.Object obj)
int GetHashCode()
type GetType()
string ToString()
System.IO.WatcherChangeTypes ChangeType {get;}
string FullPath {get;}
string Name {get;}

虽然它确实有效，但它仍然会查找名为Apertura的文件，这意味着Apertura.txt无法使用，我建议使用类似Apertura的内容。*如果您不知道扩展名。

示例代码：

$watcher = New-Object System.IO.FileSystemWatcher
$watcher.Path = "C:\test\"
$watcher.Filter = "*.*"
$watcher.IncludeSubdirectories = $true
$watcher.EnableRaisingEvents = $true  

$action = {

    $path = $Event.SourceEventArgs.FullPath
    $changeType = $Event.SourceEventArgs.ChangeType
    $file = $Event.SourceEventArgs.Name #get filename from Event data  
    $logline = "$(Get-Date), $changeType, $path"

    if ($file -like "Apertura.*") { #removed the .Name and added .*
        Add-Content "C:\Users\username\Desktop\Apertura.txt" -Value $logline
    } else {
        Add-Content "C:\Users\username\Desktop\TestNO.txt" -Value $logline
    }
}

Register-ObjectEvent $watcher "Created" -Action $action
while ($true) {sleep 5}

$watcher.Dispose() #can be used to dispose the System.IO.FileSystemWatcher

不同文件的差异动作

1 个答案: