path to powershell code example

Example 1: powershell script path

# Powershel 3+
$PSScriptRoot

# Powershell 2-
$scriptPath = split-path -parent $MyInvocation.MyCommand.Definition

Example 2: add to path windows powershell

$env:Path = "SomeRandomPath";             (replaces existing path) 
$env:Path += ";SomeRandomPath"            (appends to existing path)