FTP_upload_on_file_change.ps1

#
# Watches for changes to files matching the $watchFilter within the $watchDir
# directory, then uploads them to a FTP server.
# It is recommended to use a scheduled task to ensure this script runs on
# system boot.
#

## Config - Change these.
$ftpUrl = "ftp://username:password@example.com/some/folder/"
$watchDir = "C:\temp\"
$watchFilter = "*.txt"

## Do Not Edit Below
function uploadFile($fullFileName)
{
    $webclient = New-Object System.Net.WebClient
    $fileName = [system.io.path]::GetFileName($fullFileName)
    $fileUrl = $ftpUrl+$fileName
    $uri = New-Object System.Uri($fileUrl)
    try
    {
        $rc = $webclient.UploadFile($uri, $fullFileName)
    }
    catch [System.Net.WebException]
    {
        Write-Host "[ERR]: "$_
        return
    }
    Write-Host "Uploaded $fullFileName"
}

$watcher = New-object System.IO.FileSystemWatcher $watchDir
$watcher.EnableRaisingEvents = $true
$watcher.Filter = $watchFilter

$changed = Register-ObjectEvent $watcher "Changed"  -Action {
    Write-Host $eventArgs.ChangeType, $eventArgs.Fullpath
    uploadFile $eventArgs.Fullpath
}

while($true) {
    echo "."
    start-sleep -s 10
}