Correct Way To Request Parameters In Powershell

Question

I'm trying to figure out the correct way to request parameters in a PowerShell script without using a function. With the following sample script I get an error if I don't include the Param within the function.

#Add SharePoint PowerShell SnapIn if not already added
if ((Get-PSSnapin "Microsoft.SharePoint.PowerShell" -ErrorAction SilentlyContinue) -eq $null) {
Add-PSSnapin "Microsoft.SharePoint.PowerShell"
}

function SomeFunctionName
{

Param(
[Parameter(Mandatory=$true)]
[string]$CollectionUrl,
[Parameter(Mandatory=$true)]
[string]$SourceList,
[Parameter(Mandatory=$true)]
[string]$DestList,
[Parameter(Mandatory=$true)]
[string]$ExpireDays
) # END PARAMS


#DO SOMETHING WITH THE PARAMETERS

}

If I remove the "function" and surrounding brackets just try to request parameters directly in the script I get the following error:

Missing closing ')' in expression.

Keith Hill · Accepted Answer · 2015-01-13 16:59:15Z

2

You need to put the param(...) block at the top of the script before the If/Add-PSSnapin. You can have comments before the param but no other script.

answered Jan 13, 2015 at 16:59

Keith Hill

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