I’m trying to write a wrapper function in PowerShell that basically evaluates the first parameter and based on that runs a program on the computer. All the remaining paramet
This sort of does what you ask. You may run into trouble if you need to pass dash-prefixed options to the executable that conflict or cause ambiguity with the PowerShell common parameters. But this may get you started.
function Invoke-MyProgram
{
[CmdletBinding()]
Param
(
[parameter(mandatory=$true, position=0)][string]$Option,
[parameter(mandatory=$false, position=1, ValueFromRemainingArguments=$true)]$Remaining
)
if ($Option -eq 'A')
{
Write-Host $Remaining
}
elseif ($Option -eq 'B')
{
& 'C:\Program Files\some\program.exe' @Remaining # NOTE: @ not $ (splatting)
}
}