atool is a script for managing file archives of various types such as .zip, tar.gz and all other formats. From the article:
Atool uses other tools behind the scenes to perform the heavy lifting. With atool, you can handle any archive without having to remember what command-line tool to use to expand it and which options that particular tool expects. Atool comes with a collection of commands, including aunpack, apack, als, acat, adiff, and arepack. The tools are all links to the main atool Perl script, but they perform the actions that their name suggests -- for example, unpacking or creating a new archive.
Debian / Ubuntu Linux user can install atool using apt-get command, enter:
$ sudo apt-get install atool
$ aunpack backuo.tar.gz
$ aunpack -e *.tar.gz
$ apack myarchive.zip foo bar
$ man atool