title: How to ignore "can't open file" error message in unix
body: <p>I am searching table name in all scripts across the directories in specific directory. 
  eg. home/abcd</p>
  
  <p>I have abc, pqr, xyz directory under home/abcd. I have my project specific scripts inside these directories.</p>
  
  <p>I have used the command like this.</p>
  
  <pre><code>grep table_name home/abcd/abc | cut -d":" -f1 &gt; output.txt
  </code></pre>
  
  <p>Here, whenever the file under this directory don't have READ permission, I am getting an error message like this:</p>
  
  <blockquote>
    <p>Can't open the file.</p>
  </blockquote>
  
  <p>But, I don't want to show this message on the screen. </p>