The Environment PowerShell module is a module for dealing with Paths and Environment variables.

• Set-EnvironmentVariable allows you to set an Environment variable permanently at the Machine or User level, or temporarily at the process level.
• Select-UniquePath allows you to de-dupe an array of path strings
• Add-Path uses the first two to add folders to path variables like $Env:PSModulePath or $Env:PATH without duplication
• Set-AliasToFirst searches a list of paths to find the first instance of an app and create an alias pointed to it (allowing you to avoid adding folders to the environment Path variable for a single application).
• Get-SpecialFolder helps Windows users find special folders (like the user's desktop)
• Trace-Message writes verbose (or debug or warning) messages with timestamps for script timing

Install-Module Environment