get-openfiles.ps1

# Get-openfiles.ps1
# Connects to a remote server and queries users with open folders
# Created: 2016-02-12
# Created by: James Hodgkinson based on work from Jeff Patton

# TODO: Make this runnable from the command line

$hostname = CHANGETHIS
$pathtocheck = CHANGETHISTOO

# https://gallery.technet.microsoft.com/scriptcenter/ef8de213-45b6-4751-8c77-01d1b6623e16
Function Get-OpenFiles 
{ 
    <# 
        .SYNOPSIS 
            Get a list of files open on the server 
        .DESCRIPTION 
            This function returns a list of files open on a given server. The output is 
            similar to that of the Manage Open Files from the Share and Storage Management 
            console. 
        .PARAMETER ComputerName 
            The NetBIOS or FQDN of the computer 
        .EXAMPLE 
            Get-OpenFiles -ComputerName fs 
 
            User          Path                              LockCount 
            ----          ----                              --------- 
            User1         F:\Users\User1\Documents\Data\...         0 
            User2         P:\Public                                 0 
 
            Description 
            ----------- 
            This example shows the basic usage of this command. 
        .NOTES 
            FunctionName : Get-OpenFiles 
            Created by   : Jeff Patton 
            Date Coded   : 09/26/2011 13:01:38 
        .LINK 
            https://code.google.com/p/mod-posh/wiki/ComputerManagement#Get-OpenFiles 
    #> 
    [CmdletBinding()] 
    Param 
        ( 
        $ComputerName = (hostname)
        ) 
    Begin 
    { 
        $OpenFiles = @() 
        $Server = [adsi]"WinNT://$($ComputerName)/LanmanServer" 
        $Resources = $Server.PSBase.Invoke("Resources") 
        } 
    Process 
    { 
        foreach ($Resource in $Resources) 
        { 
            Try 
            { 
                $UserResource = New-Object -TypeName PSobject -Property @{ 
                    User = $Resource.GetType().InvokeMember("User","GetProperty",$null,$Resource,$null) 
                    Path = $Resource.GetType().InvokeMember("Path","GetProperty",$null,$Resource,$null) 
                    LockCount = $Resource.GetType().InvokeMember("LockCount","GetProperty",$null,$Resource,$null) 
                    } 
                } 
            Catch 
            { 
                } 
            $OpenFiles += $UserResource 
            } 
        } 
    End 
    { 
        Return $OpenFiles 
        } 
    } 

get-openfiles -computername $hostname | foreach-object $_ { 
    if( $_.Path.StartsWith( $pathtocheck ) ) {
        write-host $_.Path "is opened by" $_.User
    }
}