title: How can I change a default oh-my-zsh command alias?
body: <p>I would like to use <code>exa</code> (<a href="https://github.com/ogham/exa" rel="nofollow noreferrer">github</a>) as a replacement for the default <code>ls</code>. I have gotten used to typing <code>ll</code>, <code>l</code> or <code>ls</code> and would like to alias <code>exa</code> accordingly.</p>
  
  <p>But when trying to override the alias in the <code>.zshrc</code> zsh default back to the usual <code>ls</code> upon reloading and ignores the override.</p>
  
  <p>Tried the follwing in my <code>.zshrc</code>'without sucess:</p>
  
  <pre class="lang-sh prettyprint-override"><code>alias ls="exa -lahF"
  alias l="exa -lahF"
  alias ll="exa -lahF"
  </code></pre>
  
  <p>Is it possible to change the default alias and if so, how?</p>
  
  <p>FIXED: Define aliases in .zshrc after <code>source $ZSH/oh-my-zsh.sh</code></p>