title: Is there a way to use awk to REMOVE lines based on threshold value?
body: <p>I have a bunch of identifiers in the first column and scores for individual samples (for those identifiers) in the next columns, like this;</p>
  
  <pre><code>ID       1         2          3
  21       20        70         80
  13       44        50         10
  </code></pre>
  
  <p>I know the <code>awk</code> syntax to count how many instances there when every value in a row is less than 20 <code>(($2 &lt; 20) &amp;&amp; ($3 &lt; 20) &amp;&amp; ($4 &lt; 20))</code>, but I don't know how to filter them out.</p>
  
  <p>If I do <code>(($2 &gt; 20) &amp;&amp; ($3 &gt; 20) &amp;&amp; ($4 &gt; 20))</code> and print those and save them, it is not the same, because you will have instances in the first example where one value is less than 20 and the row is still kept because not ALL values are less than 20 (e.g.   10     40     45) . With the <code>&gt;</code> version, all values must be greater than 20, so this row would have been deleted. </p>
  
  <p>Can you please help me? Maybe I need <code>sed</code>?
  Thanks!</p>