Get-LocalGroupMemberInfo

Windows: Lists members of a specified local security group

Script

#Requires -Version 5.1
#Requires -Modules Microsoft.PowerShell.LocalAccounts

[CmdletBinding()]
Param
(
    [Parameter(Mandatory = $true, ValueFromPipeline = $true)]
    [string]$Name,

    [string]$ComputerName = $env:COMPUTERNAME,

    [pscredential]$Credential
)

Process
{
    try
    {
        $scriptBlock = {
            Param($GroupName)
            Get-LocalGroupMember -Group $GroupName -ErrorAction Stop | ForEach-Object {
                [PSCustomObject]@{
                    Name         = $_.Name
                    PrincipalSource = $_.PrincipalSource
                    ObjectClass  = $_.ObjectClass
                    SID          = $_.SID.Value
                    ComputerName = $env:COMPUTERNAME
                }
            }
        }

        if ($ComputerName -ne $env:COMPUTERNAME)
        {
            $invokeParams = @{
                'ComputerName' = $ComputerName
                'ScriptBlock'  = $scriptBlock
                'ArgumentList' = $Name
                'ErrorAction'  = 'Stop'
            }
            if ($null -ne $Credential)
            {
                $invokeParams.Add('Credential', $Credential)
            }

            $result = Invoke-Command @invokeParams
        }
        else
        {
            $result = &$scriptBlock -GroupName $Name
        }

        Write-Output $result
    }
    catch
    {
        throw
    }
}

Customize

Name string

Specifies the name of the local group to query (e.g., "Administrators").

ComputerName string

Specifies the name of the target computer. Defaults to the local computer.

env string

Credential pscredential

Specifies a PSCredential object for remote connection.