Powershell腳本在ISE中工作，但不在控制檯中

Question

我正在編寫一個powershell腳本，它將啓動一個進程，監視文件夾的文件更改，然後在添加/更改文件時備份該文件夾。

如果我在Powershell ISE中運行我的腳本，它可以正常工作，我可以監視該文件夾，並且它會按預期正確保存備份。

問題是我想運行一個批處理文件來運行powershell腳本。但是，無論何時我從PowerShell控制檯運行腳本，或者運行運行腳本的批處理文件時，它都不再起作用。腳本運行並註冊事件。當我將文件複製到監視文件夾時，我只獲取已更改的事件，而不是創建的事件，並且不再調用doStuff函數。我不知道如何去調試這個：/

以下是我的腳本。我已經刪除了與當前的actualyl錯誤不相關的部分，所以我在這裏使用的一些變量不會被聲明，但它們在那裏。我得到了寫主機時改變的事件發生，但不是創建的事件（儘管如說在ISE早期的教，我得到的事件和一切工作只是罰款）控制檯

#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

請嘗試移動功能你的腳本的開始。

即將function doStuff($event)和function backupSave()移動到腳本的開頭。

問題可能是因爲當您從腳本調用函數時，它們尚未定義。它在Powershell ISE中起作用，因爲您已經多次運行該腳本，並且函數在某個時間被定義了。