title: How to generate letter sequence list in fish shell
body: <p>In bash you can generate letter sequence easily as "{a..z}", for example</p>
  
  <pre><code>$ echo {a..z}
  a b c d e f g h i j k l m n o p q r s t u v w x y z
  </code></pre>
  
  <p>How to do that in the fish shell instead?</p>