title: how to restrict length of string present in a line using linux
body: <p>I have data of the following form:</p>
  
  <pre><code>num1    This is a string
  num2    This is another string
  </code></pre>
  
  <p>I want to limit length of all strings which are after the first tab..such that length(string)&lt;4. Therefore, the output which I get is:</p>
  
  <pre><code>num1    This is a string
  num2    This is another 
  </code></pre>
  
  <p>I can do this using python. But I am trying to find a linux equivalent in order to achieve the same.</p>