Powershell Split statement

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2 years, 1 month ago.

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  • #64819

    Points: 66
    Rank: Member

    I am writing an Active Directory script that needs to determine which Server Cluster each clients personal data resides on.

    Here is pseudocode form of what I have writting

    $HostedClients = Get all OU and subOU's of the Active Directory Tree
    foreach ($client in $hostedClients)
        $RandomUser = Get a Random User within OU and grab his/her H: drive path
        $ServerCluser = Get the Root folder of the Path.

    Here is a Sample output of the list of Clients and a 'sample' H: drive path from each.

    Fishman	\\cfs03\healthpcp-users$\Fishman\anna.pirog
    Golden	\\cfs03\healthpcp-users$\golden\mnava
    HH	\\cfs03\healthpcp-users$\hh\drashidi
    SHCS	\\cfs03\healthpcp-users$\hshcs\lsalems
    GA	\\cfs03\healthpcp-users$\jandrews
    CLD	\\cfs03\healthpcp-users$\jschin
    Kamboj	\\cfs03\healthpcp-users$\kamboj\tcooper
    Kare	\\cfs03\healthpcp-users$\kare\nhemkes1

    As you can see, depending on how the AD folder structure is setup, the number of 'folders' in the UNC path may be different per OU.
    The pseudocode line "$ServerCluser = Get the Root folder of the Path" I tried to accomplish with the following command

    $RootFolder = ($RandomUser.HomeDirectory -split '\\')[-3]

    This retrieved results for 'most' of them, but since I had a different number of folders for some, it retrieved the wrong results.

    Is there a way I can take the root folder name of any length UNC path and retrieve the name of the root? The only 'solution' I can see is to devise a separate function that 'counts' the number of folder depths and then capture that number with a variable and then do the split on that value.

  • #64825

    Points: 1,811
    Helping HandTeam Member
    Rank: Community Hero

    So... which part, in your sample output, do you define as the "root?" \\cfs03 or healthpcp-users$?

  • #64843

    Points: 638
    Helping Hand
    Rank: Major Contributor

    It's much easier to provide what the expected result is. You can usually get what you want by doing some math and referencing by index. Here are some examples of how you can manipulate the index:

    $shares = @{
        "Fishman" = "\\cfs03\healthpcp-users$\Fishman\anna.pirog"
        "Golden"  = "\\cfs03\healthpcp-users$\golden\mnava"
        "HH"      =	"\\cfs03\healthpcp-users$\hh\drashidi"
        "SHCS"    = "\\cfs03\healthpcp-users$\hshcs\lsalems"
        "GA"      =	"\\cfs03\healthpcp-users$\jandrews"
        "CLD"     =	"\\cfs03\healthpcp-users$\jschin"
        "Kamboj"  = "\\cfs03\healthpcp-users$\kamboj\tcooper"
        "Kare"    = "\\cfs03\healthpcp-users$\kare\nhemkes1"
    foreach ( $share in $shares.GetEnumerator() ) {
        $arr = $share.Value.split("\")
        "{0} upperbound is {1}" -f $share.Key, $arr[-1]
        "{0} one folder up is {1}" -f $share.Key, $arr[$arr.Count - 2]
        "{0} first folder after share {1} `r`n" -f $share.Key, $arr[4]


    SHCS upperbound is lsalems
    SHCS one folder up is hshcs
    SHCS first folder after share hshcs 
    Fishman upperbound is anna.pirog
    Fishman one folder up is Fishman
    Fishman first folder after share Fishman 
    CLD upperbound is jschin
    CLD one folder up is healthpcp-users$
    CLD first folder after share jschin 
    Golden upperbound is mnava
    Golden one folder up is golden
    Golden first folder after share golden 
    Kamboj upperbound is tcooper
    Kamboj one folder up is kamboj
    Kamboj first folder after share kamboj 
    Kare upperbound is nhemkes1
    Kare one folder up is kare
    Kare first folder after share kare 
    GA upperbound is jandrews
    GA one folder up is healthpcp-users$
    GA first folder after share jandrews 
    HH upperbound is drashidi
    HH one folder up is hh
    HH first folder after share hh 
  • #64852

    Points: 66
    Rank: Member

    Answering Don Jones' question, root would be 'cfs03 in these examples.

  • #64855

    Points: 1,811
    Helping HandTeam Member
    Rank: Community Hero

    So it'd always be index [0], then, regardless of the path length.

  • #64876

    Points: 66
    Rank: Member

    Thanks for your input. This is my 'finished' project which is just a reconnaissance script for me as I push along and create another script that will eventually 'fix' users H: drive permissions (we have been getting hit with Crypto-Locker Malware derivatives and they have been spreading due to incorrect NTFS permissions). First step, I have to determine which Server their files are located.

    I'm somewhat of a noob when it comes to Powershell, but I am finding that the remote functionality and the remote execution capability is becoming really handy, so I trying to get up to speed quickly.

    If you have any 'critiques' about my script, I would welcome your advice.

    #Declare my array and String parameters
    $objectCollection = @()
    $seperator = "\"
    $option = [System.StringSplitOptions]::RemoveEmptyEntries
    #Get List of Host Clients from Active Directory
    $TPHosted = Get-ADOrganizationalUnit -Filter * -SearchScope Subtree -SearchBase "OU=Hosted,DC=XXXX,DC=local"
    foreach ($TPclient in $TPHosted)
      $CompanyOU = [string]$TPclient.Name    
      $OUPath = [string]$TPClient.DistinguishedName 
      $RandomUser = Get-ADUser -Filter *  -SearchBase $OUPath -Properties homedirectory  |  where-object {$_.homedirectory -ne $null} | Sort-Object{Get-Random} | Select -First 1
      #Some clients might not have any data on the file server (example...email only).  Only create objects for 'hosted' data clients.
       $ClientDrive = [string]$RandomUser.homedirectory  
       $array = $ClientDrive.Split($seperator,2,$option)
       $Server = $array[0]
       $properties = @{
       Server = $Server
       $object = New-Object -TypeName PSObject -Property $properties
       $objectCollection += $object
       #No users in the Client OU have data within hosted enviornment
    } #End of ForEach TPClient

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