Long" class="external-link"><code>Getopt::Long</code></a> and keeps almost all features of it. The syntax of option specification is the same as <code>Getopt::Long</code>. So if you are from Perl and you know <code>Getopt::Long</code>, there would be no difficulty with using it.</p>
<p>The usage is very simple:</p>
<div class="sourceCode" id="cb3"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span class="kw"><a href="https://rdrr.io/r/base/library.html" class="external-link">library</a></sp