Invoke-command Missing Expression Operator '-'

Question

invoke-command -computer hq128804 -scriptblock {powershell.exe -nonprofile -executionpolicy Bypass c:\Install-WMF5.ps1}

The Error:

Missing expression after unary operator '-'.
    + CategoryInfo          : NotSpecified: (Missing express...y operator '-'.:String) [], RemoteException
    + FullyQualifiedErrorId : NativeCommandError
    + PSComputerName        : hq128804

At line:1 char:2
+ - <<<< nonprofile -executionpolicy Bypass c:\Install-WMF5.ps1
    + CategoryInfo          : ParserError: (-:String) [], ParentContainsErrorR
   ecordException
    + FullyQualifiedErrorId : MissingExpressionAfterOperator
NotSpecified: (:) [], RemoteException

I am trying to run a script that is located on the root file system of another remote PC. I want to be able to execute this and update PowerShell for 2000 machines. I have the update files on each system, I just need a way to execute the .ps1 file Microsoft provides from my machine.

The script you invoke (Install-WMF5.ps1) has an error - your code example seems good. — restless1987
– restless1987, Commented Jun 6, 2017 at 19:10
Well - I was about to say "so? I had a script from M$ that could not work on W10 machines because of lazy coding...", but there must be another issue. Give me a second — restless1987
– restless1987, Commented Jun 6, 2017 at 19:12
It is working... but it is hanging. It isn't producing an error or anything. I have executable rights. winrm is enabled. — schnipdip
– schnipdip, Commented Jun 6, 2017 at 19:25

Ranadip Dutta · Accepted Answer · 2017-06-07 04:29:09Z

0

You should do something like this:

Invoke-command -ComputerName hq128804 -scriptblock{powershell.exe -noprofile -executionpolicy Bypass -Command "& { c:\Install-WMF5.ps1}" }

Note: Make sure you are having the ps1 properly placed in the mentioned path

answered Jun 7, 2017 at 4:29

Ranadip Dutta

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