title: how to display the second line of a file and translate the characters into uppercase
body: <pre class="lang-none prettyprint-override"><code>/home/msabbar/sample_dir2
  `-- sample_dir
      |-- admin
      |-- cambridge
      |   |-- cafeteria
      |   |-- library
      |   `-- security
      |       |-- annex
      |       |-- building
      |       `-- parking
      |-- faculty
      |-- history.exe
      |-- markham
      |   |-- annex
      |   |-- building1
      |   `-- parking
      `-- stenton
          |-- gen_ed
          |   |-- Holidays
          |   `-- cars2
          |-- lib_arts
          |   |-- english.txt
          |   `-- match.doc
          `-- phone_directory
  </code></pre>
  
  <p>11 directories, 12 files</p>
  
  <p>Your current directory is sample_dir. Display the 2nd line of the file cars2,
  translated to uppercase (hint: start with a 'head' command):</p>
  
  <p>okay so i did</p>
  
  <pre><code>head -2 | tr "[a-z]" "[A-Z]" &lt; stenton/gen_ed/cars2
  </code></pre>
  
  <p>and </p>
  
  <pre><code>head -n 2 | tr "[a-z]" "[A-Z]" &lt; stenton/gen_ed/cars2
  </code></pre>
  
  <p>but it's wrong</p>
  
  <p>what am i doing wrong here?</p>