PowerShell Script select only the first MAC address, append a timestamp and append to a file every 5 seconds

CaptureMAC.ps1

# PowerShell Script select only the first MAC address, append a timestamp
# and append to a file every 5 seconds

while (1)
{
	$arpTable = $(arp -a) | select -Skip 3 | Select -first 1
	$arpTable = $arpTable + $(Get-Date)
	Out-File -Append -FilePath .\captured-mac.txt -InputObject $arpTable
	Start-Sleep -Seconds 5
}