UNIX for Advanced & Expert Users

<p>
          Plan on doing a lot of running today. You are a hunter relentlessly tracking down those that dare steal your team's flag. If your flag gets captured, your only focus is to return it to your base. Nothing else matters. &nbsp;</p>
<div>
          <em><strong>How do I play?</strong></em></div>
<div>
          Enlist in the operation, then go into a public match and play. Your total score against all enlisted players, (Most Kills, Most Bomb Plants, etc.) within the stated period of time determines the winners. When the Operation ends, a leaderboard displays everyone&rsquo;s placement.</div>
<div>
          &nbsp;</div>
<div>
          <em><strong>Enlist now or you&rsquo;ll regret it</strong></em></div>
<div>
          Enlistment Period is over once the event starts. If the event starts at 12:00 AM(PDT), you better enlist by 11:58 PM (PDT) just to be safe.</div>

lynx -dump

$ cat tags_to_remove
<p>
<strong>
&nbsp;
<div>
<em>
</em>
</strong>
</p>
</div>
$

$ while read line; do sed "s,$line,,g" infile > infile1 ; mv infile1 infile; done<tags_to_remove

$ nawk '{sub(/^[ \t]+/, "")};1' infile > outfile