获取当前用户的所在组

[System.Security.Principal.WindowsIdentity]::GetCurrent().Groups |%{$_.value} |

  ForEach-Object {

    $sid = $_

    $objSID = New-Object System.Security.Principal.SecurityIdentifier($sid)

    $objUser = $objSID.Translate( [System.Security.Principal.NTAccount])

    $objUser.Value

  }

OR

[System.Security.Principal.WindowsIdentity]::GetCurrent().Groups | foreach {

    $objSID = New-Object System.Security.Principal.SecurityIdentifier($_.value)

    $objUser = $objSID.Translate( [System.Security.Principal.NTAccount])

    $objUser.Value

}