convert and install rpm and other packages

alien

convert and install rpm and other packages

Alien allows you to convert LSB, Red Hat, Stampede and Slackware Packages into Debian packages, which can be installed with dpkg.
tiling, keyboard driven Common Lisp window manager

stumpwm

tiling, keyboard driven Common Lisp window manager

StumpWM is a window manager written entirely in Common Lisp. It attempts to be highly customizable while relying entirely on the keyboard for input. You will not find buttons, icons, title bars, tool bars, or any of the other conventional GUI widgets.
log colorizer that makes log checking easier

colortail

log colorizer that makes log checking easier

colortail works like tail but can optionally read one or more config files where it's specified which patterns results in which colors. Colortail uses regular expressions (see regex(7)) to determine which lines and parts of lines to print in which colors.
Graphical GTK+ front-end to tesseract-ocr

gimagereader

Graphical GTK+ front-end to tesseract-ocr

gImageReader is a simple front-end to tesseract-ocr. Tesseract is probably the most accurate open source optical character recognition (OCR) software and can recognize text in over 60 languages.
Unarchiver for .rar files (non-free version)

unrar

Unarchiver for .rar files (non-free version)

Unrar can extract files from .rar archives. If you want to create .rar archives, install package rar.
Main interface

relational

Educational tool for relational algebra (graphical user interface)

Relational is primarily a tool to provide a workspace for experimenting with relational algebra, an offshoot of first-order logic.