title: How to list the contents of a nested archive (.gz)
body: <p>I have a compressed archive (archives.tar.gz) of compressed archives f1.tar.gz, f2.tar.gz, f3.tar.gz... </p>
  
  <p>I would like to list the contents of a sub archive file, say f1.tar.gz, without actually upacking and extracting everything. In other words, I need to be able to do something like: tar -ztvf f1.tar.gz without first having to do: tar -zxvf archives.tar.gz</p>
  
  <p>Any ideas on how to do this?</p>
  
  <p>Many thanks!!</p>