Question

我正在编写一个powershell脚本，它将启动一个进程，监视文件夹以进行文件更改，然后在添加/更改文件时备份该文件夹。

如果我在Powershell ISE中运行我的脚本，它运行正常，我可以监视该文件夹，它将按预期正确保存备份。

问题是我想运行一个运行powershell脚本的批处理文件。但是每当我从powershell控制台运行脚本时，或者当我运行运行脚本的批处理文件时，它都不再起作用。脚本运行并且事件已注册。当我将文件复制到监视文件夹时，我只获取更改的事件而不是创建的事件，并且不再调用doStuff函数。我不确定如何调试这个：/

以下是我的剧本。我删除了与当前实际错误相关的部分，因此我在这里使用的一些变量你不会看到已声明但是它们在那里。当更改的事件发生时，我将写主机发送到控制台但不是创建的事件（尽管如ISE中所述，我得到了两个事件，一切正常）

#unregister events, in case they weren't unregistered properly before. Just error     siliently if they don't exist
Unregister-Event ConsoleStopped -ErrorAction SilentlyContinue
Unregister-Event FileCreated -ErrorAction SilentlyContinue
Unregister-Event FileChanged -ErrorAction SilentlyContinue
Unregister-Event TimerTick -ErrorAction SilentlyContinue

#start the console process
Write-Host Starting console process...
$consoleProcess = Start-Process "$consoleExe" -PassThru

#register to listen for when the console stops
Register-ObjectEvent $consoleProcess Exited -SourceIdentifier ConsoleStopped -Action {
    Write-Host Console stopped

    #unregister events
    Unregister-Event ConsoleStopped -ErrorAction SilentlyContinue
    Unregister-Event FileCreated -ErrorAction SilentlyContinue
    Unregister-Event FileChanged -ErrorAction SilentlyContinue

    if(!$timer.Enabled) {
        Unregister-Event TimerElapsed -ErrorAction SilentlyContinue
        Remove-Item $timer
    }

    Remove-Item $fsw
    Remove-Item $consoleProcess
}

#watch all files/folders
$filter = '*.*'  # You can enter a wildcard filter here.

# In the following line, you can change 'IncludeSubdirectories to $true if required.                           
$fsw = New-Object IO.FileSystemWatcher $folder, $filter -Property     @{IncludeSubdirectories = $true;NotifyFilter = [IO.NotifyFilters]'DirectoryName, FileName,     LastWrite'}

#register for FileCreated event
Register-ObjectEvent $fsw Created -SourceIdentifier FileCreated -Action {
    write-host Created event has occurred
    doStuff($Event)
}

#register for FileChanged event
Register-ObjectEvent $fsw Changed -SourceIdentifier FileChanged -Action {
    Write-Host Change event has occurred
    doStuff($Event)
}

function doStuff($event)
{
    write-host doStuff has been called

    $name = $Event.SourceEventArgs.Name
    $changeType = $Event.SourceEventArgs.ChangeType
    $timeStamp = $Event.TimeGenerated
    Write-Host "The file '$name' in '$folder' was $changeType at $timeStamp" -fore     green

    if(!$timer.Enabled) {
        Write-Host Starting save timer
        Register-ObjectEvent $timer Elapsed -SourceIdentifier TimerElapsed -Action $TimerAction
        $timer.Start()
        Out-File "$backupDir\backup.log" -Append -Force -InputObject "A request for a backup created at $timeStamp"
    }
    else {
        Write-Host A backup has already been request
    }
}

function backupSave ()
{
    Write-Host Starting backup...
    $timestamp = Get-Date -Format o | foreach { $_ -replace ":", "." }
    Copy-Item $folder "$backupDir\backup_$timestamp" -Recurse -Force
}

Answer 1

尝试将您的功能移至脚本的开头。

即。将function doStuff($event)和function backupSave ()移到脚本的开头。

问题可能是因为当您从脚本调用函数时，它们还没有被定义。它适用于Powershell ISE，因为您多次运行脚本并且函数是在某个时间定义的。

Powershell脚本在ISE中工作，但在控制台中不起作用

1 个答案: