Powershell: Run multiple jobs in parralel and view streaming results from background jobs

Question

Overview

Looking to call a Powershell script that takes in an argument, runs each job in the background, and shows me the verbose output.

Answer 1

In your ForEach loop you'll want to grab the output generated by the Jobs already running.

Example Not Tested

$sb = {
     "Starting Job on $($args[0])"
     #Do something
     "$($args[0]) => Do something completed successfully"
     "$($args[0]) => Now for something completely different"
     "Ending Job on $($args[0])"
}
Foreach($computer in $computers){
    Start-Job -ScriptBlock $sb -Args $computer | Out-Null
    Get-Job | Receive-Job
}

Now if you do this all your results will be mixed. You might want to put a stamp on your verbose output to tell which output came from.

Or

Foreach($computer in $computers){
    Start-Job -ScriptBlock $sb -Args $computer | Out-Null
    Get-Job | ? {$_.State -eq 'Complete' -and $_.HasMoreData} | % {Receive-Job $_}
}
while((Get-Job -State Running).count){
    Get-Job | ? {$_.State -eq 'Complete' -and $_.HasMoreData} | % {Receive-Job $_}
    start-sleep -seconds 1
}

It will show all the output as soon as a job is finished. Without being mixed up.