title: How to change prefix key of tmux to Ctrl?
body: <p>I'd like to change prefix key of tmux from C-b to Ctrl only and tried following in .tmux.conf. But it doesn't work.</p>
  <pre><code>unbind C-b
  set -g prefix C
  bind C send-prefix 
  </code></pre>
  <p>Thanks</p>