(PowerShell script) Self-elevate to Administrator, preserve arguments, use Windows Terminal console when possible.

admin.ps1

<#
.SYNOPSIS
    Self-elevate to Administrator and preserve arguments.

.DESCRIPTION
	Self-elevate to Administrator, preserve arguments, use Windows Terminal console when possible.

.EXAMPLE
	
	# Import
	iwr -useb 'https://gist.githubusercontent.com/boredwz/f7e908dd8d25cc8345ef2065e093d63c/raw/admin.ps1' | iex
	
	# Elevate if not admin
	If (-not (Admin)) {Admin -Elevate $MyInvocation.Line;return}
	
	# ADMINISTRATOR

.EXAMPLE
	
	iwr -useb 'https://gist.githubusercontent.com/boredwz/f7e908dd8d25cc8345ef2065e093d63c/raw/admin.ps1' | iex
	If (!(Admin)) {
		Write-Warning 'Administrator rights required.';'Press [Enter] or [Y] to run as Admin...'
		if([Console]::ReadKey($true).Key -match '^(Enter|Y)') {Admin -Elevate $MyInvocation.Line '"echo test1"|iex;"test2"'};return
	}
#>



function Admin([switch]$Elevate, $MyInv, [string]$C) {
	if (!$Elevate) {return ('([{0}Principal] [{0}Identity]::GetCurrent()).IsInRole([{0}BuiltInRole]::Administrator)' -f 'Security.Principal.Windows'|iex)}
	$wt = if(gcm wt -ea 0){"\\"}else{""}
	$cm = ('[Console]::Title'|%{'{0}="{1}";cd -l ''{2}'';{3};{4}' -f $_,(iex $_),$pwd,($MyInv -join ';'),$C}) -replace '"',"$wt\`""
    "-nol -noe -ep bypass -c"|%{if($wt){$exe="wt";$ar="powershell",$_,($cm -replace ';','\;')}else{$exe="powershell";$ar=$_,$cm}}
    start $exe $ar -wor "~" -v runAs
}