title: Simple batch script random number generator
body: <p>I am new to using the %random% command in batch scripts and I am trying to create a batch script to randomly create a number between 0 and 3.  I wrote the following but with every instance (everytime I double-click the BAT file) I get the same number '1'.  This defeats the purpose.  Which is based on this number copy over a selected video file so it is random.</p>
  
  <pre><code>echo off 
  set numb=" "
  set /a numb=%random% / 10000 
  echo %numb% :only used for testing 
  pause :only used for testing
  
  if %numb% LEQ 1 goto trailer
  if %numb% EQU 2 goto dragon
  if %numb% EQU 3 goto live
  
  :dragon
  echo Dragon
  copy /Y "F:\Skyrim SSE\mod backup - files\Dragon flyby - BGS_Logo.bik" "D:\SteamLibrary\steamapps\common\Skyrim Special Edition\Data\Video\BGS_Logo.bik"
  exit
  
  :trailer
  echo Trailer
  copy /Y "F:\Skyrim SSE\mod backup - files\Official Trailer-BGS_Logo.bik" "D:\SteamLibrary\steamapps\common\Skyrim Special Edition\Data\Video\BGS_Logo.bik" 
  exit
  
  :live
  Echo Live
  copy /Y "F:\Skyrim SSE\mod backup - files\Dragonborne-live-BGS_Logo.bik" "D:\SteamLibrary\steamapps\common\Skyrim Special Edition\Data\Video\BGS_Logo.bik" 
  exit
  </code></pre>
  
  <hr>
  
  <p>I want to keep this as simple as possible as this really doesn't need to be complicated.  Please help</p>