title: c remove the first character of an array
body: <p>I have a string:</p>
  
  <pre><code>str1 = "abcabcabc";
  </code></pre>
  
  <p>How can I remove the first character? I would like the end result to be:</p>
  
  <pre><code>str1 = "bcabcabc";
  </code></pre>