title: How to use egrep with double quotes in search string?
body: <p>I have a <code>sample.txt</code> as follows:</p>
  <pre class="lang-sh prettyprint-override"><code>$ cat sample.txt
  bc
  it is | ERROR
  first
  second
  third
  No space left
  1
  2
  3
  4
  </code></pre>
  <p>I want to search both <code>| ERROR</code> and <code>No space left</code>. When I try using the below command, it is not giving the expected result:</p>
  <pre class="lang-sh prettyprint-override"><code>$ egrep -w '&quot;| ERROR&quot;|No space left' sample.txt
  No space left
  </code></pre>
  <p>Please help.</p>