How to get PowerShell to wait for Invoke-Item completion?

Question

How do I get PowerShell to wait until the Invoke-Item call has finished? I'm invoking a non-executable item, so I need to use Invoke-Item to open it.

score 26 · Answer 1 · edited Aug 20 '12 at 08:55

26

Just use Start-Process -wait, for example Start-Process -wait c:\image.jpg. That should work in the same way as the one by @JaredPar.

edited Aug 20 '12 at 08:55

Vladislav Rastrusny

29,378
23
95
156

answered Apr 23 '10 at 18:14

stej

28,745
11
71
104

score 19 · Answer 2 · answered Apr 24 '10 at 20:44

19

Pipe your command to Out-Null.

answered Apr 24 '10 at 20:44

Shay Levy

121,444
32
184
206

2

Can you provide an example? `Invoke-Expression ... | Out-Null`? – The Muffin Man Jul 30 '14 at 16:39
@TheMuffinMan ` myprogram.exe | Out-Null ` http://stackoverflow.com/a/7908022/217593 – Michael Sync Oct 18 '16 at 01:38

score 9 · Accepted Answer · answered Apr 23 '10 at 17:31

Unfortunately you can't by using the Invoke-Item Commandlet directly. This command let has a void return type and no options that allow for a wait.

The best option available is to define your own function which wraps the Process API like so

function Invoke-Command() {
    param ( [string]$program = $(throw "Please specify a program" ),
            [string]$argumentString = "",
            [switch]$waitForExit )

    $psi = new-object "Diagnostics.ProcessStartInfo"
    $psi.FileName = $program 
    $psi.Arguments = $argumentString
    $proc = [Diagnostics.Process]::Start($psi)
    if ( $waitForExit ) {
        $proc.WaitForExit();
    }
}

score 2 · Answer 4 · answered Oct 14 '16 at 15:41

2

One easy way

$session = New-PSSession -ComputerName "xxxxx" -Name "mySession"
$Job = Invoke-Command -Session $session -FilePath "xxxxx" -AsJob
Wait-Job -Job $Job

answered Oct 14 '16 at 15:41

Dr Coyo

61
1
4

don't forget to clean up `Remove-PSSession $session` – dognose Jul 27 '23 at 12:11

How to get PowerShell to wait for Invoke-Item completion?

4 Answers4

One easy way

Linked