title: How to find precise numbers in line and print the line with them?
body: <p>I have a file with table:</p>
  <pre><code>1.59    29.206  0.203728775894573   4   60
  1.6537  355.592 0.212182437055971   4   0
  1.59    29.206  0.203728775894573   3   45
  </code></pre>
  <p>I am trying to print the line with numbers <code>4 0</code>.</p>
  <p>I tried to use this code.</p>
  <pre><code>    t=4
      v=0
      line=$(grep -F &quot;$t&quot; prediction.txt  | grep -F &quot;$v&quot;)
      echo -e $line
  </code></pre>