MkDir.lua

local EU = require("ExtraUtilits")
if EU.version < 1.0 then error("Invalid version of ExtraUtilits library. Install version 1.0 or more to use it.") end
local fs = require("filesystem")
local shell = require("shell")
local gpu = require("component").gpu
local unicode = require("unicode")

path = shell.resolve("")

s = false

repeat
  lpath = path .. "/" .. EU.ReadyUtilits.WriteFieldUI(60, 23, "Enter folder name")

  local function foo()

  if fs.exists(lpath) then

      local text = "Folder with name '" .. lpath .. "' is already exists."
      gpu.setBackground(0xff0000)
      gpu.setForeground(0xffffff)
      gpu.fill(80 - unicode.wlen(text) / 2, 23, unicode.wlen(text) + 2, 3, " ")
      gpu.set(80 - unicode.wlen(text) / 2 + 1, 24, text)
      os.sleep(2)
    else
      s = true
    end

  end

  EU.screenBackup(foo)
until s

path = lpath

local result, reason = fs.makeDirectory(path)

if not result then print(reason) end