Snownews is a console RSS/RDF news reader. It supports all versions of RSS natively and can be expanded via plugins to support many other other formats. The main program screen, that is shown right after you start snownews, lets you add/remove feeds and update them manually. On the right side of the screen the number [...]

Sipcalc, in it’s simplest form takes an ip-address and a subnet mask on the commandline and outputs information about the subnet. Sipcalc has support for both IPv4 and IPv6 addresses. Sipcalc can take input in three forms, an ip-address/netmask, an interface or via stdin using the special character -.
Sipcalc output [...]

scanlogd detects port scans and writes one line per scan via the syslog mechanism. If a source address sends multiple packets to different ports in a short time, the event will be logged. In order to do its job, scanlogd needs a way to obtain raw IP packets that either come to the system scanlogd [...]

zenity is a program that will display GTK+ dialogs, and return (either in the return code, or on standard output) the users input. This allows you to present information, and ask for information from the user, from all manner of shell scripts.
Some fun things to do with zenity:
zenity –info –text=”I am an uberhaxor and Linux [...]