Useful Powershell Functions

Get-OSInfo.ps1

Function Get-OSInfo {
	param($RemotePC)

	$OSInfo = "" | Select OSName,OSVersion,OSArchitecture,OSFamily,OSType,Status
	$OSInfo.Status = $true
	$PingStatus = Gwmi Win32_PingStatus -Filter "Address = '$RemotePC'" | Select-Object StatusCode
	If ($PingStatus.StatusCode -eq 0) {
		$error.Clear()
		Try {
			$CompSys = Gwmi Win32_ComputerSystem -Comp $RemotePC -ErrorAction Stop
		} Catch {
			$OSInfo.Status = $false
			$OSInfo.OSName = "ERROR"
			Return $OSInfo
		}
		If ( $CompSys.Name -eq $RemotePC ) {
			$error.Clear()
			Try {
				$OSInfo.OSVersion = (Gwmi -Class Win32_OperatingSystem -Computer $RemotePC).Version
			} Catch {
				$OSInfo.Status = $false
				$OSInfo.OSVersion = "UNDETERMINED"
				return $OSInfo
			}
			$Error.Clear()
			Try {
				$OSInfo.OSName = (Gwmi -Class Win32_OperatingSystem -Computer $RemotePC).Caption
			} Catch {
				$OSInfo.Status = $false
				$OSInfo.OSName = "UNDETERMINED"
				return $OSInfo
			}
			$Error.Clear()
			Try {
				$OSInfo.OSArchitecture = (Get-WmiObject Win32_Processor -ComputerName $RemotePC -NameSpace root\cimv2 | Where {$_.DeviceID -eq "CPU0"}).AddressWidth
			} Catch {
				$OSInfo.Status = $false
				$OSInfo.OSArchitecture = "UNDETERMINED"
				return $OSInfo
			}
			#}
			#1 Work Station
			#2 Domain Controller
 			#3 Server
			$Error.Clear()
			Try {
				$ProductType = (Gwmi -Class Win32_OperatingSystem -Computer $RemotePC).ProductType
			} Catch {
				$OSInfo.Status = $false
				$OSInfo.OSType = "UNDETERMINED"
				return $OSInfo
			}
			Switch ($ProductType) {
				1 { $OSInfo.OSType = "Workstation" }
				2 { $OSInfo.OSType = "DomainController" }
				3 { $OSInfo.OSType = "Server" }
				default { $OSInfo.OSType = "Other" }
			}
			Switch -wildcard ($OSInfo.OSVersion) {
				"6.1*" {
					If ( $OSInfo.OSType -eq "Workstation" ) { $OSInfo.OSFamily = "WIN7" }
					If ( ( $OSInfo.OSType -eq "Server" ) -or ( $OSInfo.OSType -eq "DomainController" ) ) { $OSInfo.OSFamily = "WIN2008R2" }
				}
				"6.0*" {
					If ( $OSInfo.OSType -eq "Workstation" ) { $OSInfo.OSFamily = "WINVISTA" }
					If ( ( $OSInfo.OSType -eq "Server" ) -or ( $OSInfo.OSType -eq "DomainController" ) ) { $OSInfo.OSFamily = "WIN2008" }
				}					
				"5.2*" {
					If ( $OSInfo.OSType -eq "Workstation" ) { $OSInfo.OSFamily = "WINXP64" }
					If ( ( $OSInfo.OSType -eq "Server" ) -or ( $OSInfo.OSType -eq "DomainController" ) ) { $OSInfo.OSFamily = "WIN2003" }
				}					
				"5.1*" {
					If ( $OSInfo.OSType -eq "Workstation" ) { $OSInfo.OSFamily = "WINXP" }
				}
				"5.0*" {
					If ( $OSInfo.OSType -eq "Workstation" ) { $OSInfo.OSFamily = "WIN2000WKS" }
					If ( ( $OSInfo.OSType -eq "Server" ) -or ( $OSInfo.OSType -eq "DomainController" ) ) { $OSInfo.OSFamily = "WIN2000SRV" }
				}					
			}
			return $OSInfo
		}
	} else { #Cannot ping
		$OSInfo.Status = $false
		$OSInfo.OSName = "OFFLINE"
		Return $OSInfo
	}
}

Get-WhereLoggedOn.ps1

Function Get-WhereLoggedOn {
	param(
		[parameter(Mandatory=$True)][string]$UserName,
		[parameter(Mandatory=$false)][string]$ShareServer
		)
	If ( -not ( $ShareServer ) ) {
		$ShareServer = "PRIMARYSHARESERVER"
		#EDIT THIS      ^^^^^^^^^^^^^^^^^^
	}
	$userSessions = Get-WmiObject -Class Win32_ServerConnection -ComputerName $ShareServer | Where-Object { ($_.UserName).ToUpper() -eq "$UserName" } | Select-Object ComputerName | Sort-Object -Property ComputerName | Get-Unique -AsString
	If ( $userSessions ) {
		Write-Host "$($UserName) is logged onto the follow systems:"
		ForEach ( $session in $userSessions ) {
			$HostName = ([System.Net.Dns]::GetHostbyAddress($session.ComputerName)).HostName
			Write-Host "`t$HostName"
		}
	}
}