req example uncompressing mybigdir.tar.gz file

[monk]

I'm looking for the equivalent of the command `tar xvzpf
mybigdir.tar.gz`

I'd like to use core modules to uncompress gunzipped and tarballs.

mybigdir.tar.gz. Inside the tarball, there are two subdirectories(foo
and lando). Each subdirectory has regular ascii files.

Do you mind providing an example which decompresses myfile.tar.gz
while keeping the dir structure? dumping it into that same root
directory or other directory.

Thanks in advance,