GNU Interactive Tools (GNUIT) is a set of interactive tools. It contains an extensible file system browser, an ASCII/hex file viewer, a process viewer/killer, and some other related utilities and shell scripts. It can be used to increase the speed and efficiency of most of the daily tasks such as copying and moving files and directories, invoking editors, compressing and uncompressing files, creating and expanding archives, compiling programs, sending mail, etc. It looks nice, has colors (if the standard ANSI color sequences are supported), and is user-friendly.
Surfraw (Shell Users' Revolutionary Front Rage Against the Web) provides a Unix command line interface to a variety of popular Web search engines and sites, including Google, Altavista, Wikipedia, Babelfish, Ebay, Wayback, Research Index, Yahoo!, Slashdot, freshmeat, CPAN, dictionaries, weather, currency conversion, and many others.