Print Timestamp of Stop and Start Services into .txt file - powershell

Question

I want timestamp when services is stopped/restarted then output to file. The file will become as attached and send to support.
I cannot output to file as my below query seems got error.
$hostname = $env:computername
$smtpServer = 'smtpServer'
$from = "from"
$recipients = 'recipients'
$Subject = "Services Restarted Successfully on $hostname $ipv4"
$body = "This mail confirms that the service on $hostname $ipv4 is now running."
$ipv4 = (Test-Connection -ComputerName $env:computername -count 1).ipv4address.IPAddressToString
$natip = Invoke-WebRequest ifconfig.me
$timestamp = (Get-Date)
$output = D:\Testing\Restart.txt
$attachment = $output
$service = 'Apache'
Stop service
Stop-Service -name $service -Verbose
do {
Start-sleep -s 5 | Write-Output "$timestamp Services is stopped" | Out-file $output
}
until ((get-service $service).Status -eq 'Stopped')
Start service
start-Service -name $service -Verbose
do {
Start-sleep -s 5 | Write-Output "$timestamp Services is restarted" | Out-file $output
}
until ((get-service $service).Status -eq 'Running')
Send confirmation that service has restarted successfully
Start-Sleep -s 5
Send-MailMessage -To $recipients -Subject $Subject -Body $body ((gsv Apache) | out-string) -From $from -SmtpServer $smtpServer -Attachments $attachment

Answer 1

As stated in above comments, change your code to
Stop-Service -name $service -Verbose
do {
Start-sleep -s 5
Write-Output "$timestamp Services is stopped" | Out-file $output
} until ((get-service $service).Status -eq 'Stopped')
Actually your Start-Sleep cmledt calls output is sent to the pipeline ( Start-sleep - s 5 |...). My guess is that Start-sleep doesn't returns anything, so nothing is send to the pipeline. Based on that Write-Output is not called.
Antoher guess: Assignment to $output fails since your path is not a string, Powershell may interpret the assignment in command mode. Change it to:
$output = "D:\Testing\Restart.txt"