Improve Existing PowerShell to Monitor Multiple Folders

  • Status: Closed
  • Prize: $25
  • Entries Received: 1
  • Winner: num13

Contest Brief

I have the following script which monitors a 'source' folder. When any data enters the source folder, it is moved to a 'destination' folder. This is working well with 1 source and 1 destination folder. My issue is that I need to monitor 6 source folders and 3 receive folders. I have 3 disconnected networks. They are to remain separate from each other for security reasons. The idea is to have a data diode of sorts between the networks.

So if the networks are A, B and C.

I need to monitor 6 source folders.

A to B, A to C, B to A, B to C, C to A, C to B.

and 3 destination folders

A Receive, B Receive and C Receive.

I'm looking for direction on how best to do this.

Here's my current script:


# The paths for the source and destination folders
$global:source = "D:\Source"
$global:dest = "D:\Destination"

# Path to the log file.
$global:log_file = "D:\[login to view URL]"

if (!(Test-Path $global:source)) {
Write-Host "Source folder doesn't exist!"

if (!(Test-Path $global:dest)) {
Write-Host "Destination folder doesn't exist!"

if (Test-Path function:unwatch) {

$filter = '*.*' # You can enter a wildcard filter here.

$fsw = New-Object [login to view URL] $source, $filter -Property @{IncludeSubdirectories = $true;NotifyFilter = [[login to view URL]]'DirectoryName, FileName, LastWrite'}

$action = {
$name = $[login to view URL]
$source_path = Join-Path $global:source $name
$dest_path = Join-Path $global:dest $name
$dir = Split-Path -Parent $dest_path
$time = Get-Date -Format "[yyyy/MM/dd HH:mm]"

if (!(Test-Path $dir)) {
mkdir $dir

Move-Item -Force -Path $source_path -Destination $dest_path
Write-Output "$time Moved $name to $dest_path" >> "$global:log_file"

$a = Register-ObjectEvent $fsw Created -SourceIdentifier FileCreated -Action $action
$a = Register-ObjectEvent $fsw Changed -SourceIdentifier FileChanged -Action $action
$a = Register-ObjectEvent $fsw Renamed -SourceIdentifier FileRenamed -Action $action

function global:unwatch {
Unregister-Event FileCreated
Unregister-Event FileChanged
remove-item function:unwatch
Write-Host "Stopped."

Write-Host "Watching for changes!"
Write-Host "Type 'unwatch' and press enter to stop." -ForegroundColor green



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