<#
http://powershell.com/cs/members/jagnagra/default.aspx
Queries a computer to check for interactive sessions
.EXAMPLE
.\GetUserLoggedOnto.ps1 -UserName <userid>
#>

[CmdletBinding()]
Param(
	[Parameter(ValueFromPipeline = $true,
		ValueFromPipelineByPropertyName = $true)]
	[string[]]$ComputerName = (Get-ADComputer -filter {
			Enabled -eq $True } | Sort-Object name | Select-Object -expand Name),
	[Parameter(ValueFromPipeline = $true,
		ValueFromPipelineByPropertyName = $true)]
	[string]$username = 'username',
	[Parameter()]
	[string]
	$OutputDir = "\\fileserver\sharename"
)
begin {
	$OutputFile = Join-Path $OutputDir "filename.csv"
	Write-Verbose "Script will write the output to $OutputFile folder"
	$ErrorActionPreference = 'Stop'
}
process {
	foreach ($Computer in $ComputerName) {
		If (!(Test-Connection -ComputerName $Computer -Count 1 -Quiet)) {
			# Device is off
		}
		else {
			try {
				quser /server:$Computer 2>&1 | Select-Object -Skip 1 | ForEach-Object {
					$CurrentLine = $_.Trim() -Replace '\s+', ' ' -Split '\s'
					$HashProps = @{
						UserName     = $CurrentLine[0]
						ComputerName = $Computer
					}

					# If session is disconnected different fields will be selected

					if ($currentline[0] -eq $username -and $CurrentLine[2] -eq 'Disc') {
						$HashProps.Id = $CurrentLine[1]
						$HashProps.State = $CurrentLine[2]
						$HashProps.IdleTime = $CurrentLine[3]
						$HashProps.LogonTime = $CurrentLine[4..6] -join ' '
						$HashProps.LogonTime = $CurrentLine[4..($CurrentLine.GetUpperBound(0))] -join ' '
						New-Object -TypeName PSCustomObject -Property $HashProps |
						Select-Object -Property UserName, ComputerName, State, ID, IdleTime, LogonTime
						Add-Content -Path $OutPutFile -Value "$Computer, $CurrentLine[1], State"
					}
					else {
						$HashProps.SessionName = $CurrentLine[1]
						$HashProps.Id = $CurrentLine[2]
						$HashProps.State = $CurrentLine[3]
						$HashProps.IdleTime = $CurrentLine[4]
						$HashProps.LogonTime = $CurrentLine[5..($CurrentLine.GetUpperBound(0))] -join ' '
						New-Object -TypeName PSCustomObject -Property $HashProps |
						Select-Object -Property UserName, ComputerName, State, ID, IdleTime, LogonTime
						Add-Content -Path $OutPutFile -Value "$Computer, $CurrentLine[1], State"
					}
				}
			}
			catch {

			}
			finally {

			}
		}
	}
}
end {

}