Powershell：FileSystemWatcher用于更改文件名

Question

我尝试使用此代码来监控文件服务器上的文件名更改。但我只想在扩展名发生变化时触发事件。

任何建议？

### SET FOLDER TO WATCH + FILES TO WATCH + SUBFOLDERS YES/NO
$watcher = New-Object System.IO.FileSystemWatcher
$watcher.Path = "E:\"
# $watcher.Filter = "*.*"
$watcher.IncludeSubdirectories = $true
$watcher.EnableRaisingEvents = $true  

$action = { $path = $Event.SourceEventArgs.FullPath
            $changeType = $Event.SourceEventArgs.ChangeType
            $Name = $Event.SourceEventArgs.Name
            $logline = "$(Get-Date), $changeType, $path, $name"
            Add-content "E:\log.txt" -value $logline
          }

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

Answer 1

将$ watcher变量中的NotifyFilter属性设置为仅FileName。

$watcher.NotifyFilter = 'FileName'

现在该操作只会触发文件名更改。