Public/Get-ComputerSerialNumber.ps1
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function Get-ComputerSerialNumber { <# #> [CmdletBinding(DefaultParameterSetName='Default')] param ( # Parameter help description [parameter(Mandatory = $true)] [string[]] $ComputerName, # Parameter help description [parameter( ParameterSetName='Default', Mandatory = $false)] [parameter( ParameterSetName='Linux', Mandatory = $true)] [pscredential] $Credentials, [parameter(ParameterSetName='Linux')] [switch] $Linux ) process { foreach ($Computer in $ComputerName) { if (!(Test-Connection -ComputerName $Computer -Count 1 -Quiet)) { Write-Warning -Message "Could not connect to '$Computer', because the machine is offline." continue } if (!$Linux) { Write-Verbose -Message "Connecting to '$Computer' using WinRM session." try { $Session = New-CimSession -ComputerName $Computer $Return = Get-CimInstance -CimSession $Session -ClassName Win32_Bios New-Object -TypeName PSObject -Property @{ 'Name' = $Computer 'SerialNumber' = $Return.SerialNumber } } catch { throw } finally { if ($Session) { $null = Remove-CimSession -CimSession $Session } } } #if else { Write-Verbose -Message "Connecting to '$Computer' using SSH session." try { $Session = New-SSHSession -ComputerName $Computer -Credential $Credentials -AcceptKey $Return = Invoke-SSHCommand -SSHSession $Session -Command 'dmidecode | grep "Serial Number" | head -n 1' $SerialNumber = $Return.Output[0].Split(':')[1].Trim() New-Object -TypeName PSObject -Property @{ 'Name' = $Computer 'SerialNumber' = $SerialNumber } } catch { throw } finally { if ($Session) { $null = Remove-SSHSession -SSHSession $Session } } } #else } } } |