title: Find a match on specific line
body: <p>I'm looking for a way to find a match on a specific line in multiple files, e.g.:</p>
  
  <p>file1.txt:</p>
  
  <pre><code>abcd.123
  efgh.456
  </code></pre>
  
  <p>file2.txt:</p>
  
  <pre><code>ijkl.789
  mnop.001
  </code></pre>
  
  <p>I want to return all results for line #2 in each file if it contains a <code>.</code> (period).</p>
  
  <p>So far I've tried this cmd:</p>
  
  <pre><code>Get-Content *.ini | where-object {"$_" -match '.\\..='}
  </code></pre>
  
  <p>which will return the file name of any file that contains a <code>.</code>.</p>
  
  <p>What I want is to return the file name of any file that has a <code>.</code> on line 2.</p>