title: write a shell script to find the count of employees working in a given department name. (UNIX)
body: <p>Find a number of employees in a given department.</p>
  <pre><code>EmpID|Name|Department
  1|John|IT
  2|Jack|IT
  3|Kevin|Sales
  4|Daniel|HR
  5|Sam|Sales
  </code></pre>
  <p>output for department IT will give answer as</p>
  <pre><code>2
  </code></pre>