Scan specific sub-folder of every folder in powershell - powershell

Question

I have this script which is working fine
$watcher = New-Object System.IO.FileSystemWatcher
$watcher.Path = "C:\folder_to_scan\"
$watcher.Filter = "*.nrrd"
$watcher.IncludeSubdirectories = $true
$watcher.EnableRaisingEvents = $true
$action =
{
$path = $Event.SourceEventArgs.FullPath
Write-Host "The file '$path' was $changeType at '$(Get-Date)'" -fore green
}
Register-ObjectEvent $watcher "Created" -Action $action
while ($true) {sleep 3600}
But in my C:\folder_to_scan\ I have a lot of sub-directories like 00123, 00245, 56002 ... And inside each of them I have \THE_DIRECTORY_TO_SCAN
So I tried this $watcher.Path = "C:\folder_to_scan\*\THE_DIRECTORY_TO_SCAN\" and $watcher.Path = "C:\folder_to_scan\[0-9]*\THE_DIRECTORY_TO_SCAN\"
But this is not working. Is it possible to use wildcard in this situation?
If not, how to use multi path with FileSystemWatcher?
Because I figured out that we can use this
Resolve-Path "C:\folder_to_scan\*\THE_DIRECTORY_TO_SCAN\" | Select -ExpandProperty Path

Answer 1

I'm not familiar with FileSystemWatcher so I am assuming you just need to feed in the folder paths to $watcher.Path
I'm also assuming your code works already.
try using Get-ChildItem and use a for loop:
$watcher = New-Object System.IO.FileSystemWatcher
Get-ChildItem "C:\folder_to_scan\" -Recurse | ? { $_.PSIsContainer -and $_.Name.EndsWith("THE_DIRECTORY_TO_SCAN")}| %{
$watcher.Path = $_.FullName #change this
$watcher.Filter = "*.nrrd"
$watcher.IncludeSubdirectories = $true
$watcher.EnableRaisingEvents = $true
}
$action =
{
$path = $Event.SourceEventArgs.FullPath
Write-Host "The file '$path' was $changeType at '$(Get-Date)'" -fore green
}
Register-ObjectEvent $watcher "Created" -Action $action
while ($true) {sleep 3600}

Answer 2

Ok so to clarify what i was talking about earlier. You are only repeating your wait-function. To show you what i mean :
echo "This would be your code running."
while ($true) {sleep -second 3}
This would print the sentence once and then keep waiting for eternity for 3 seconds each time $true is true.
What you need to do is :
do{
echo "This would be your code running."
sleep -seconds 3
} while($true)
This will print the sentence every 3 seconds.
Or in your case, run your watcher every 3 seconds.

Answer 3

I didn't find a perfect solution so I did this
if ( $path -like '*\THE_DIRECTORY_TO_SCAN\*' )
{ Write-Host "File created in \THE_DIRECTORY_TO_SCAN" -fore green }
else
{ Write-Host "File created NOT in \THE_DIRECTORY_TO_SCAN" -fore red }