dangh

function tftpd
  switch $argv
  case start
    sudo rm -rf /private/tftpboot
    sudo ln -s (pwd) /private/tftpboot
    sudo launchctl load -w /System/Library/LaunchDaemons/tftp.plist
  case stop
    sudo launchctl unload -w /System/Library/LaunchDaemons/tftp.plist
  end
end

dangh

local function uuid()
    math.randomseed(os.time())
    local template ='xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'
    return string.gsub(template, '[xy]', function (c)
        local v = (c == 'x') and math.random(0, 0xf) or math.random(8, 0xb)
        return string.format('%x', v)
    end)
end