PS slideShow

show.ps1

function wait { $null = $Host.UI.RawUI.ReadKey('NoEcho,IncludeKeyDown') }
function line { write-host '' }
function getslides {param([string]$path) Get-Childitem -Path $path -Filter slide*.md}
function slide {
    param(
        [string]$path
    )
    $slides = getslides $path
    foreach ($i in 0..$slides.count) {
        $slide = Join-Path $path slide$i.md
        Clear-Host
        line
        if (Test-Path $slide) {
            Show-Markdown $slide
            wait
        }
    }
    'no more slides' | Show-Markdown
}