<p><a class="user-mention" data-hovercard-type="user" data-hovercard-url="/hovercards?user_id=184809" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/miconda">@miconda</a> It causes <code>Substitution Error</code>. I search for that error and I found that the cause is that <code>sh</code> links to <code>dash</code> in Debian Stretch. I change the <code>/bin/sh</code> to <code>/bin/bash</code> and error resolved.</p>

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