muCommander is a free cross-platform file manager with graphical interface. If you have Java RE, software can be run on any operating system Mac OS X, MS Windows, Linux, Debian/Ubuntu, Webstart, BSD, Solaris. There is also Portable version.
The interface is intuitive and translated into 27 languages. The program supports such archives as ZIP, RAR, 7z, TAR, Gzip, etc., as well as work with FTP, Samba, NFS, HTTP, and Bonjour.