Finding who is using a Windows Share in PowerShell

You can find the users and computers connected to a share pretty easily in powershell.

$share_name = "*"
$shares = Get-WmiObject Win32_ServerConnection 
$shares = $shares | Where-Object {$_.ShareName -like $share_name} | `
                    Select-Object ShareName, UserName, `
                                  @{n="Computer";e={[System.Net.Dns]::GetHostEntry($_.ComputerName).HostName}}
$shares | Group-Object -Property ShareName | ` 
          Select Name, `
                 @{n="Computers";e={$_.Group | Select -ExpandProperty Computer | Get-Unique}},`
                 @{n="Users";e={$_.Group | Select -ExpandProperty UserName | Get-Unique}},`
                 Group

$share_name is a filter to narrow down the shares you are checking. Other than that it gets all the share connections then groups them by share. It shows unique users and computers connected to each share.

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