title: Convert ARGV to a string so that I can search for text
body: <p>How can I take user input <code>ARGV.first</code> and convert it into a string so that I can search for particular text?</p>
  
  <p>I have tried to create a <code>checkifinstring = #{ARGV.first}.join("")</code></p>
  
  <p>The `checkifinstring =~ /s/</p>