How to monitor the existing of a file on an azure vm with azure tools

Gr1n3 

May leverage Azure monitor and PowerShell:

SAMPLE [Please make sure you are fully understand the script before apply]

$FilePath = "C:\xxxx\file.txt"
$LastWriteTime = (Get-Item $FilePath).LastWriteTime
$CurrentTime = Get-Date
$TimeDifference = $CurrentTime - $LastWriteTime

if (Test-Path $FilePath -and $TimeDifference.TotalMinutes -le 20) {
Write-Output "File exists and was updated in the last 20 minutes."
# Trigger an alert or take action
} else {
Write-Output "File does not exist or was not updated in the last 20 minutes."
}