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powershell and invoke-command

Hi Ee,

i have a script that invokes a script residing on remote host with ;

invoke-command -computername computer1 - command { c:\script\somescript.ps1}

invoke-command -computername computer2 - command { c:\script\somescript.ps1}

Pardon my syntax , it works gret however , is it waiting for the first script to completely finish/exit before it moves onto the second invoke-command , or are they running concurrently ?

if not running concurrently , is there a parameter to specify this ?

ASKER CERTIFIED SOLUTION

footech

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Jason Crawford

That's not accurate. You can achieve "fan out remoting" with PowerShell while using the Invoke-Command cmdlet by simply specifying more than one computer for the -ComputerName parameter, for example:

Invoke-Command -ComputerName server1,server2,server3 -ScriptBlock {Get-Service}

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Invoke-Command -ComputerName (Get-Content .\servers.txt) -ScriptBlock {Get-Service}

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https://blogs.technet.microsoft.com/heyscriptingguy/2012/07/25/an-introduction-to-powershell-remoting-part-three-interactive-and-fan-out-remoting/

If you wanted one command to run at a time, you could just use a ForEach-Object loop:

Get-Content .\servers.txt | ForEach-Object {
    Invoke-Command -ComputerName $_ -ScriptBlock {Get-Service}
}

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footech

Jason - How is it not accurate? You go on to describe the exact same thing as I did in my last paragraph.

davesnb

ASKER

Thanks Guys