來自:http://www.debianadmin.com/unpack-almost-everything-with-one-command.html
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.
Examples how to use unp
unp *.tar.gz
unp *.tar.bz
unp *.rpm
unp *.deb
unp *.zip
unp *.rar