title: How do I do nothing for the last else statement, and move on to the next part of the array?
body: <p>What should I do </p>
  
  <p>If I input "a   a" and shift it once I expect it to return "b   b" however I get an error
   I want to the for loop to skip over anything that isn't A-Z, a-z, or 0-9</p>
  
  <pre><code>for ( ; i &lt;= w; i++)
  
      if ((word[i] + rotx) &gt;= 65 &amp;&amp; (word[i] + rotx) &lt;=90)
      {
          word[i] += (rotx);
      }
      else if ((word[i] + rotx) &gt;= 97 &amp;&amp; (word[i] + rotx) &lt;=122)
      {
          word[i] += (rotx);
      }
      else if ((word[i] + rotx) &gt;= 48 &amp;&amp; (word[i] +rotx) &lt;= 57)
      {
          word[i] += (rotx);
      }
      else if ((word[i] + rotx) &gt; 90 &amp;&amp; (word[i]+rotx) &lt;97)
      {
          word[i] = 64 + (rotx - (90-word[i]));
      }
      else if ((word[i] + rotx) &gt; 122)
      {
          word[i] = 96 + (rotx - (122-word[i]));
      }
      else if ((word[i] + rotx) &gt; 57)
      {
          word[i] = 47 + (rotx - (57-word[i]));
      }
  </code></pre>
  
  <p>OUTPUT
  enter string "a   a"
  enter rotations 1</p>
  
  <p>-bash: 1: command not found</p>