title: Cloning Bitbucket Repository Using `SSH` With Bash Script Linux
body: <p>I'm trying to provision a <code>vm</code> via terraform.
  I want to clone <code>Bitbucket</code> repository using <code>ssh</code> on <code>vm</code>.
  I'm using this in to bash script file <code>git clone git@bitbucket.org:projectname-com/ansible.git</code>. But I got this error:</p>
  <pre><code>The authenticity of host  
  'bitbucket.org(***.***.***.*)' can't be established.
  </code></pre>
  <ol>
  <li>I created <code>ssh</code> private/public key.</li>
  <li>I created <code>Access key</code> on the bitbucket repository with the public key .</li>
  </ol>
  <p>Please let me know how can authenticate to <code>bitbucket</code> via <code>ssh</code> in bash script and clone a repository?</p>