Tail an event log through PowerShell

Watch-EventLogTail.ps1

## PowerShell Eventing lets you tail an event log:
## http://powershellcookbook.com/recipe/IMyz/respond-to-automatically-generated-events
$watcher = New-Object System.Diagnostics.Eventing.Reader.EventLogWatcher "Microsoft-Windows-PowerShell/Operational"
Register-ObjectEvent $watcher EventRecordWritten -Action {
    $event = $eventArgs.EventRecord
    if($event.ProcessId -ne $pid)
    {
        ## Save the last event into a variable in the PowerShell sesssion if you want to explore its properties,
        ## as the eventing actions run in their own runspace
        # $GLOBAL:lastEvent = $event
        $event | Select Id, LogName, TimeCreated, @{ Label = "Message"; Expression = { $_.FormatDescription() } } | 
            Format-Table -Wrap | Out-Host
    }
}
$watcher.Enabled = $true