title: Lua Match Everything After Character in String
body: <p>I am new to Lua, and hardly understand pattern matching. I am trying to figure out how to match everything in a string after a colon, and put that portion of the string into a variable. I haven't had much luck by looking around online, or maybe I am just not seeing it. So how would I do this?</p>
  
  <p>For example, say I have a variable called <code>my_string</code> that is equal to <code>"hello:hi_there"</code> or something like that. How can I extract <code>"hi_there"</code> to a another variable without changing <code>my_string</code>?</p>
  
  <p>It looks like I would need to use <code>string.match()</code>, but what pattern would be used to achieve my goal?</p>