Check number of active rdp users on any server from command line - powershell

Param(
[Parameter(Mandatory=$True,Position=1)]
[string]$computerName
)
net use \\$computerName\c$ /user:Domain\UserName Password| out-null
$Connections=qwinsta /server:$computerName|?{ $_ -match '^\srdp-tcp#' }|?{ $_ -match 'Активно|Active' }|wc -l
Write-host $Connections.trim()
net use \\$computerName\c$ /delete | out-null