function runFunction(){
    [int] $option = Read-Host("Please select your option below: `n 1) List Processes `n 2) List Services `n 3) Ping a  Host `n 4) Doulbe a number `n 5) to exit `n")

    if ($option -eq 1){
        Get-Process
        Read-Host("Enter to continue")
    }
    elseif($option -eq 2){
        Get-Service
        Read-Host("Enter to continue")
    }
    elseif($option -eq 3){
        $target = Read-Host("Enter the host (IP/FQDN) you'd like to ping ")
        Test-Connection($target)
        #Read-Host("Enter to continue")
    }
    elseif($option -eq 4){
        [int] $number = Read-Host("Enter a number to be doubled ")
        Write-Host("Your original number was " + $number + ", but now it's " + ($number * 2))
        Read-Host("Enter to continue")
    }
    elseif($option -eq 5){
        exit
    }
    else{
        Write-Host("Invalid option, please select 1-4")
    }
    runFunction

}

runFunction