title: "Bitwise AND" in Lua
body: <p>I'm trying to translate a code from C to Lua and I'm facing a problem.
  How can I translate a Bitwise AND in Lua?
  The source C code contains:</p>
  <pre class="lang-c prettyprint-override"><code>if ((command&amp;0x80)==0)
     ...
  </code></pre>
  <p>How can this be done in Lua?</p>
  <p>I am using Lua 5.1.4-8</p>