ADSI Local Group Enum From Fancy Powershell to Simple Foreach Rewrite

hey all, 

i've been racking brain couple days , think must not understanding code in question.  

the script wish write connects machine, local or otherwise, evaluate member of local administrators group on machine in question.  the first block of code works fine not understand foreach loop decided rewrite more readable , more traditional foreach loop. goal rewrite following:

  $group =[adsi]"winnt://127.0.0.1/administrators"   $members = @($group.psbase.invoke("members"))  $members | foreach {$_.gettype().invokemember("name", 'getproperty', $null, $_, $null)}  

i rewrite form below:

$objcomputer = "127.0.0.1"  $enumgrp = "administrators"  $objgroup =[adsi]"winnt://$objcomputer/$enumgrp"  $members = @($objgroup.psbase.invoke("members"))    foreach ($item in $members)  {  	write-host $item.gettype().getproperty("name")  }

i have couple of reasons doing this;

1. i don't understand why invokemember requires 5 arguments, although i've guessed why needed first two.
2. the first code block spits out block of text.  i want more granular control on foreach loop add more code once i'm returning users of group.

right when run second block return 4 black lines, makes sense because have 4 accounts in local administrators group.

if educate me on difference between first block , second block would super awesome.  also if know how pull values out of these objects other things useful.  

1. can check methods overload directly powershell. try $members[0].gettype().invokemember

(without brackets should show definition of method.

clearly that's last overload available (name, invokeattr, binder, target, args) used method.

there no overload 2 arguments. , without target - can't anything... :)

2. fix foreach:

foreach ($member in $members) { $member.gettype().invokemember('name','getproperty',$null,$member,$null) }

other names work here: http://msdn.microsoft.com/en-us/library/aa705950(v=vs.85).aspx

hth

bartek

 

Windows Server  >  Windows PowerShell