title: ssh-agent: Could not open a connection to your authentication agent
body: <p>I have done a ton of research already, but none of those works.
  This is output from my terminal:</p>
  
  <pre><code>$ ps aux | grep ssh-agent
  tsiruan   4080  0.0  0.0  13468   388 ?        Ss   11:47   0:00 ssh-agent
  $ env | grep SSH
  SSH_AUTH_SOCK=/tmp/ssh-8CJH68abyLAa/agent.4079
  SSH_AGENT_PID=4080
  $ sudo ssh-add .ssh/bitbucket_ssh
  [sudo] password for tsiruan:
  Could not open a connection to your authentication agent.
  </code></pre>
  
  <p>I have tried <code>$ eval $(ssh-agent)</code> with backticks, single quote, double quote, with and without parentheses, with and without -s option, and even some answers like:</p>
  
  <pre><code>$ exec ssh-agent bash
  </code></pre>
  
  <p>please help me , I am running bash on arch linux.</p>