title: Disable Zsh history completely
body: <p>I would like to disable Zsh history (arrow up) and zle history search (namely esc+p) completely. How can I achieve this?</p>
  
  <p>My current <code>.zshrc</code>:</p>
  
  <pre><code>unsetopt hist_append
  unsetopt hist_expand
  HISTFILE=
  HISTSIZE=SAVEHIST=0
  </code></pre>
  
  <p>Currently I have history buffer of one, but I'd like to have history of zero.</p>
  
  <p>21-10-2016 Update:</p>
  
  <p>I've added</p>
  
  <pre><code>bindkey -r "^[p"
  bindkey -r "^Xr"
  bindkey -r "^Xs"
  bindkey -r "^[[A"
  bindkey -r "^[[B"
  bindkey -r "^[n"
  </code></pre>
  
  <p>to get rid of history features that I use (esc+p is deeply hardwired to my backbone - so difficult to unlearn).</p>