tion file in your <code>.zshrc</code> file as follows:</p><pre><code class=language-zsh data-expandlinks=true data-repo=istio>source ~/_istioctl
</code></pre><p>You may also add the <code>_istioctl</code> file to a directory listed in the <code>fpath</code> variable. To achieve this, place the <code>_istioctl</code> file in an existing directory in the <code>fpath</code>, or create a new directory and add it to the <code>fpath</code> variable in your <code>~/.zshrc</code> file.</p><div><aside class="callout