atool is a script for managing file archives of various types (tar,
tar+gzip, zip, etc).
The main command is probably "aunpack" which extracts files from an
archive. It overcomes the dreaded "multiple files in archive root"
problem by first extracting to a unique subdirectory, and then moving
back the files if possible.
aunpack also prevents local files from being overwritten by
mistake. Other commands provided are apack (for creating archives),
als (for listing files in archives), and acat (for extracting files to