How to replace a tag with a space in a text file?
<pre><code>&lt;ul class="uinfo2"&gt;&lt;li class="uname2"&gt;ruo&lt;/li&gt;
&lt;ul class="uinfo2"&gt;&lt;li class="uname"&gt;&lt;b&gt;Oinsen&lt;/b&gt;&lt;/li&gt;
</code></pre>

<p>If the file contains the above HTML lines, I want to replace the bold tag from the entire source code.</p>
