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从PowerShell中注册的事件输出中拆分字符串

filesystemwatcher powershell

0

Garrett · 技术社区 · 8 年前

我刚开始和 IO.FIleSystemWatcher . 我当前的代码可以工作,并提醒我在所需位置创建了文件,但是我想将一些变量导出并拆分字符串。我不能让分割部分工作。

功能代码:

$folder = 'D:\Output'
$filter = '*.jpg'

$fsw = New-Object IO.FileSystemWatcher $folder, $filter -Property @{IncludeSubdirectories = $false;NotifyFilter = [IO.NotifyFilters]'FileName, LastWrite'}

Register-ObjectEvent $fsw Created -SourceIdentifier FileCreated -Action {
$name = $Event.SourceEventArgs.Name
$changeType = $Event.SourceEventArgs.ChangeType
$timeStamp = $Event.TimeGenerated
Write-Host "The file '$name' was $changeType at $timeStamp" -fore green
Out-File D:\Output\scans\$name.txt    
}

$name 将始终格式化为“file.name.fn_xxx.jpg”,我想使用 split 从中提取“文件” 美元名称 ,例如:

$name.split('.')[0]

然而,据我所知,这一点都不起作用。例如,我可以输出一个文件 美元名称 作为文件名,但是如果我尝试先拆分它,就没有输出。

非功能代码:

Register-ObjectEvent $fsw Created -SourceIdentifier FileCreated -Action {
$name = $Event.SourceEventArgs.Name
$changeType = $Event.SourceEventArgs.ChangeType
$timeStamp = $Event.TimeGenerated
Write-Host "The file '$name' was $changeType at $timeStamp" -fore green

$name = $name.split('.')[0]    
Out-File D:\Output\scans\$name.txt    
}

这有点超出我的想象,所以任何建议或建议都会受到赞赏。

谢谢

1 回复 | 直到 8 年前

1

0

Garrett 8 年前

最后我只用另一个变量来计算。

$folder = 'D:\Output'
$filter = '*.jpg'

$fsw = New-Object IO.FileSystemWatcher $folder, $filter -Property @{IncludeSubdirectories = $false;NotifyFilter = [IO.NotifyFilters]'FileName, LastWrite'}

Register-ObjectEvent $fsw Created -SourceIdentifier FileCreated -Action {
$name = $Event.SourceEventArgs.Name
$changeType = $Event.SourceEventArgs.ChangeType
$timeStamp = $Event.TimeGenerated
Write-Host "The file '$name' was $changeType at $timeStamp" -fore green
Write-Host "$name"

$x = $name.split(".")[0]
Out-File D:\Output\scans\$x.txt

我不知道为什么会这样,但确实如此。如果有人知道原因,请评论!