unp | unpack (almost) everything with one command | Mehr ...
unp is a small perl script which makes extraction of any archive files a bit easier. It support several compressors and archiver programs, chooses the right one(s) automatically and extracts one or more files in one go. . You may also want to install some non-free packages like "unace-nonfree", "unrar-nonfree" and "lha" to extract archives of these types.