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POFTHEDAY&gt;  (uiop:run-program (list &quot;ls&quot;) :output t)
2020-03
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README.org
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poftheday.asd
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0 (0 bits, #x0, #o0, #b0)</code></pre><p>Probably, the most convenient part of simple-inferiors is how it handles nested directory changing. Again, here is an illustration:</p>
<pre><code class='lisp'>POFTHEDAY&gt; (progn
             (format t &quot;~2&amp;Directory structure:~2%&quot;)
             (simple-inferiors:run &quot;tree&quot; 