Rsstail is a similar program to standard Unix/Linux system command tail, which is used to display last few lines of a text file, expect this program will display the latest entries of RSS feeds. 

Rootkit hunter is a system scanner tool which checks your machine for nasty tools. This tool scans for rootkits, backdoors and local exploits by running test like:

• MD5 hash compare
• Look for default files used by rootkits
• Wrong file permissions for binaries
• Look for suspected strings in LKM and KLD modules
• Look for hidden files
• Optional scan within plaintext and binary files

Short video takes you inside the process by which the largest collaborative development project in the history of computing is organized. Based on the annual report "Who Writes Linux," this is a powerful and inspiring story of how Linux has become a community-driven phenomenon.

If you would like to convert Portable Document Format (PDF) into text in console you should install Poppler utils.Poppler is a PDF rendering library based on xpdf PDF viewer. Poppler package has some useful command line utilities for converting PDF into various format.

• pdffonts -- font analyzer 
• pdfimages -- image extractor 
• pdfinfo -- document information 
• pdftoabw -- PDF to Abiword converter 
• pdftohtml -- PDF to HTML converter 
• pdftoppm -- PDF to PPM/PNG/JPEG image converter 
• pdftops -- PDF to PostScript (PS) converter 
• pdftotext -- text extraction

htop is a better and easier to use process viewer for Linux than standard top.

Installing htop

On Debian box you can simply write following line to install htop

apt-get install htop

If you would like to compile htop from source code first download source code from http://sourceforge.net/projects/htop/  and follow next step:

tar zxvf htop-1.0.1.tar.gz
cd htop-1.0.1
./configure
make
make install

Using htop

For using htop you should simply run following command in your console:

htop

screenshot taken from htop (debian)