title: How to extract nested tar.gz files easily?
body: <p>I need to extract tar.gz a file. It's about 950mb. It has another 23 tar.gz files in it. Each of those 23 tar.gz files has one tar file in them. My questions is how I can easily extract all of them? Is there a commandline tool that I can use?</p>
  
  <p>The structure is like the following:</p>
  
  <pre><code>foo.tar.gz
   ├───bar1.tar.gz
   │   ├───foobar1.tar
   ├───bar2.tar.gz
   │   ├───foobar2.tar
   ├───bar3.tar.gz
   │   ├───foobar3.tar
   ├───bar4.tar.gz
   │   ├───foobar4.tar
   ├───bar5.tar.gz
   │   ├───foobar5.tar
   ├───bar6.tar.gz
   │   ├───foobar6.tar
   |   ..........
   |   ..........
   |   ..........
   |   23 of them
  </code></pre>
  
  <p>Thanks in advance.</p>