title: Searching tabs with grep
body: <p>I have a file that might contain a line like this.</p>
  
  <p><code>A  B</code> //Seperated by a tab</p>
  
  <p>I wanna return <code>true</code> to terminal if the line is found, <code>false</code> if the value isn't found. </p>
  
  <p>when I do 
  <code>grep 'A' 'file.tsv'</code>, It returns to row (not true / false)
  but </p>
  
  <pre><code>grep 'A \t B' "File.tsv"
  </code></pre>
  
  <p>or</p>
  
  <pre><code> grep 'A \\t B' "File.tsv"
  </code></pre>
  
  <p>or </p>
  
  <pre><code>grep 'A\tB' 
  </code></pre>
  
  <p>or </p>
  
  <p><code>grep 'A&lt;TAB&gt;B'</code> //pressing tab button</p>
  
  <p>doesn't return anything. </p>
  
  <p>How do I search tab seperated values with grep.</p>
  
  <p>How do I return a boolean value with grep.</p>