$search_param = read-host "Enter search string: "
$search_param = "*" + $search_param + "*" # Construct search param.
$search_result = Get-ADUser -Filter {Surname -like $search_param -or GivenName -like $search_param -or SamAccountName -like $search_param}


$search_result | format-table -Property GivenName,Surname,SamAccountName

$index=0
Get-Process  | Format-Table -Property @{name="index";expression={$global:index;$global:index+=1}},name,handles

$procs = Get-Process
#option 1
$procs | Select @{N='Index'; E={$procs.IndexOf($_)}}, name, handles

#option 2
$procs | Format-Table -Property @{name="index";expression={$procs.IndexOf($_)}},name,handles