title: sed - Replace characters between two strings with another string
body: <p>I have been using IFTTT (if this then that) to notify me whenever some document gets uploaded on a CMS using RSS feeds, but the link that the CMS puts into the RSS feed has spaces and it interferes with the auto link shortening that IFTTT has. For example:</p>
  
  <pre><code>&lt;div&gt;&lt;b&gt;Attachments:&lt;/b&gt; &lt;a href="http://blah.com/foo/bar/Important Announcement 5.doc"&gt;http://blah.com/foo/bar/Important Announcement 5.doc&lt;/a&gt;&lt;br&gt;&lt;a href=""&gt;&lt;/a&gt;&lt;/div&gt;
  </code></pre>
  
  <p>gives me this in the IFTTT notifications:</p>
  
  <pre><code>Attachments: http://is.gd/abcdef Announcement 5.doc
  </code></pre>
  
  <p>I currently rehost the RSS feed using a bash script because IFTTT can't go through authenticated pages. How can I use sed to remove the spaces between those two string?</p>