Powershell filesystem
From wikinotes
if (Test-Path -Path "$src_dir") # check if path exists
New-Item "$src_dir" -ItemType Directory # create directory
Remove-Item -Recurse -Force some_dir # recursively remove directory
if (Test-Path -Path "$src_dir") # check if path exists
New-Item "$src_dir" -ItemType Directory # create directory
Remove-Item -Recurse -Force some_dir # recursively remove directory