tml" class="external-link">print</a></span><span class="op">(</span><span class="va">res</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="op">}</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [1] 1</span>
<span class="r-in"><span><span class="kw">if</span> <span class="op">(</span><span class="va">run</span><span class="op">)</span> <span class="op">{</span></span></span>
<span class="r-in"><span>  <span class="co"># If the command failed, retri