Get-PSInfo.ps1

param(
	[Parameter(Mandatory = $false)]
	[string]$OutFile,
	[Parameter(Mandatory = $false)]
	[switch]$HideHost,
	[Parameter(Mandatory = $false)]
	[switch]$HideNET,
	[Parameter(Mandatory = $false)]
	[switch]$HideNETCore
)

function Out-Info{
	param(
		[Parameter(Mandatory = $true, ValueFromPipeline = $true)]
		[AllowEmptyString()]
		[string]$Data
	)

	process{
		Write-Host $Data
		if($null -ne $OutFile -and $OutFile -ne ''){
			$Data | Add-Content $OutFile
		}
	}
}

if($null -ne $OutFile -and $OutFile -ne ''){
	Remove-Item $OutFile -Force -ErrorAction SilentlyContinue
}

# PowerShell version
$PSVersionTable | Out-String | Out-Info

if (-not $HideHost) {
	# PS Host info
	Get-Host | Out-String | Out-Info
}

if (-not $HideNET) {
	# .NET Framework versions
	Get-ChildItem 'HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP' -recurse |
		Get-ItemProperty -Name Version, Release -EA 0 |
		Where-Object { $_.PSChildName -match '^(?!S)\p{L}' } |
		Select-Object PSChildName, Version, Release |
		Out-String |
		Out-Info
}

if(-not $HideNETCore){
	# .NET Core versions
	if (Get-Command 'dotnet' -ErrorAction SilentlyContinue) {
		dotnet --info | Out-Info
	}
	else {
		Write-Output '.NET Core is not installed!' | Out-Info
	}
}

iex ((New-Object System.Net.WebClient).DownloadString('https://gist.githubusercontent.com/TomasBouda/14d9946ae96fea0f034fccaf4e231ee4/raw/522efa220c0590a2dcf1fd699a87d0f07ead6ff3/Get-PSInfo.ps1'));