title: Why can I not use echo with GIT_ASKPASS
body: <p>I am trying to provide a password to git through GIT_ASKPASS like this:</p>
  
  <pre><code>export PASSWORD=&lt;secret&gt;
  export GIT_ASKPASS="/usr/bin/echo $PASSWORD"
  git clone https://username@domain.com/git-repo/repo.git
  </code></pre>
  
  <p>But I get:</p>
  
  <pre><code> error: cannot run /usr/bin/echo &lt;secret&gt;: No such file or directory
  </code></pre>
  
  <p>So it seems I am not allowed to give parameters in <code>GIT_ASKPASS</code>?</p>
  
  <p>Now I could create a script which just contains:</p>
  
  <pre><code>/usr/bin/echo $PASSWORD
  </code></pre>
  
  <p>But I am wondering: Is there a way of doing this without creating a temporary script?</p>