title: replace words using grep and sed in shell
body: <p>I have some 150 files and in them I want to remove this following code:</p>
  
  <pre><code>&lt;SCRIPT LANGUAGE="JavaScript" TYPE="text/javascript" SRC="/height.js"&gt;&lt;/SCRIPT&gt;
  </code></pre>
  
  <p>What I'm doing is: </p>
  
  <pre><code>sed -e 's/&lt;SCRIPT LANGUAGE="JavaScript" TYPE="text/javascript" SRC="/height.js"&gt;&lt;/SCRIPT&gt;/ /' file_names
  </code></pre>
  
  <p>This doesn't seem to work.</p>
  
  <p>I want to remove this script from all the files in one go. How can I do that?</p>