You may want to turn on and off the PATH environment variable, for example, when you use UNIX tools with MSYS2.

It's annoying like this.

» $prevPath = $Env:Path
» $Env:Path = "$Env:MSYS2\bin;$Env:MSYS2\mingw64\bin;$Env:Path"
» # do some work with MSYS2
» $Env:Path = $prevPath

Or you may want to change each version of compilers.

powershell-path-switcher supports this.

> Install-Module path-switcher
> Import-Module path-switcher

PowerShell Gallery

Interactive select

A quick view is at this video.

Prepare a configuration file,

# $Env:ProgramData\powershell-path-switcher\config.yaml
msys2-usr:     C:\tools\msys64\usr\bin
msys2-mingw64: C:\tools\msys64\mingw64\bin

and invoke Switch-Path.

» Switch-Path
> [ ] msys2-usr: C:\tools\msys64\usr\bin
  [ ] msys2-mingw64: C:\tools\msys64\mingw64\bin

You can move its cursor (>) up/down with ↑/↓ keys, select (check by x) with the space key and reflect with the enter key.

When you want to remove a specified path from the PATH variable, you can delete it by removing its check mark (x).

For more information see a README.