Chapters/emitting-objects-as-output/snippets.ps1
|
# functional overview of tool - will not execute as-is # Query data $os = Get-CimInstance -ClassName Win32_OperatingSystem ` -CimSession $session # Close session $session | Remove-CimSession # Output data $os | Select-Object -Prop @{n='ComputerName';e={$computer}}, Version,ServicePackMajorVersion # params into hash table $params = @{'ClassName'='Win32_OperatingSystem' 'ComputerName'='CLIENT1'} # switch params in hash table $params = @{'ClassName'='Win32_OperatingSystem' 'ComputerName'='CLIENT1' 'Verbose' = $True} # splatting hash table of params Get-CimInstance @params # revised snippet - will not execute as-is # Query data $os_params = @{'ClassName'='Win32_OperatingSystem' 'CimSession'=$session} $os = Get-CimInstance @os_params $cs_params = @{'ClassName'='Win32_ComputerSystem' 'CimSession'=$session} $cs = Get-CimInstance @cs_params $sysdrive = $os.SystemDrive $drive_params = @{'ClassName'='Win32_LogicalDisk' 'Filter'="DeviceId='$sysdrive'" 'CimSession'=$session} $drive = Get-CimInstance @drive_params $proc_params = @{'ClassName'='Win32_Processor' 'CimSession'=$session} $proc = Get-CimInstance @proc_params | Select-Object -first 1 # constructing custom object # Output data $props = @{'ComputerName'=$computer 'OSVersion'=$os.version 'SPVersion'=$os.servicepackmajorversion 'OSBuild'=$os.buildnumber 'Manufacturer'=$cs.manufacturer 'Model'=$cs.model 'Procs'=$cs.numberofprocessors 'Cores'=$cs.numberoflogicalprocessors 'RAM'=($cs.totalphysicalmemory / 1GB) 'Arch'=$proc.addresswidth 'SysDriveFreeSpace'=$drive.freespace} $obj = New-Object -TypeName PSObject -Property $props Write-Output $obj # final code function Get-MachineInfo { [CmdletBinding()] Param( [Parameter(ValueFromPipeline=$True, Mandatory=$True)] [Alias('CN','MachineName','Name')] [string[]]$ComputerName, [string]$LogFailuresToPath, [ValidateSet('Wsman','Dcom')] [string]$Protocol = "Wsman", [switch]$ProtocolFallback ) BEGIN {} PROCESS { foreach ($computer in $computername) { # Establish session protocol if ($protocol -eq 'Dcom') { $option = New-CimSessionOption -Protocol Dcom } else { $option = New-CimSessionOption -Protocol Wsman } # Connect session $session = New-CimSession -ComputerName $computer ` -SessionOption $option # Query data $os_params = @{'ClassName'='Win32_OperatingSystem' 'CimSession'=$session} $os = Get-CimInstance @os_params $cs_params = @{'ClassName'='Win32_ComputerSystem' 'CimSession'=$session} $cs = Get-CimInstance @cs_params $sysdrive = $os.SystemDrive $drive_params = @{'ClassName'='Win32_LogicalDisk' 'Filter'="DeviceId='$sysdrive'" 'CimSession'=$session} $drive = Get-CimInstance @drive_params $proc_params = @{'ClassName'='Win32_Processor' 'CimSession'=$session} $proc = Get-CimInstance @proc_params | Select-Object -first 1 # Close session $session | Remove-CimSession # Output data $props = @{'ComputerName'=$computer 'OSVersion'=$os.version 'SPVersion'=$os.servicepackmajorversion 'OSBuild'=$os.buildnumber 'Manufacturer'=$cs.manufacturer 'Model'=$cs.model 'Procs'=$cs.numberofprocessors 'Cores'=$cs.numberoflogicalprocessors 'RAM'=($cs.totalphysicalmemory / 1GB) 'Arch'=$proc.addresswidth 'SysDriveFreeSpace'=$drive.freespace} $obj = New-Object -TypeName PSObject -Property $props Write-Output $obj } #foreach } #PROCESS END {} } #function |