efficient hex editor
Tweak is an ncurses-based hex editor. Tweak uses a complex data 
structure based on B-trees, designed to make almost all editing
operations extremely fast, even when they are working on huge amounts of
data. Unlike most hex editors, it also has a fully functional insert
mode, along with full cut, copy, and paste support.

Maintainer: The OpenBSD ports mailing-list <ports@openbsd.org>

WWW: http://www.chiark.greenend.org.uk/~sgtatham/tweak/
