title: Error: `brew cask` Is No Longer When "brew cask install iterm2" Command Is Run
body: <p>I want to configure my <code>macOs</code> terminal with <code>zsh</code>. After installing <code>homebrew</code>, when I am trying to install <code>iterm2</code> running this command <code>brew cask install iterm2</code>, the error shows as like below:</p>
  <p><strong>Error: <code>brew cask</code> is no longer a <code>brew</code> command. Use <code>brew &lt;command&gt; --cask</code> instead.</strong></p>
  <p>May anyone suggest to solve it? Thanks in advance!</p>