termsql converts text from stdin or any file into an SQLite database table and allows users to execute SQL queries on that table, all in just one line on the command line. It can be used to sort, display, convert, extract, and modify data on the command line using syntax familiar to those who know SQL.
testicle is a C++ unit test framework, choosing simplicity and flexibility before purism and framework-ishness. Its primary aim is to make it easy for lazy users to add a test: easy to understand how to do it, with no header file to keep in sync, and no need to somehow register each test (with the risk of forgetting to do it, and believing the test passes when in fact it never gets executed).
TilkIRClog is a program designed for logging chats on IRC channels, written in Python. It doesn't intend to be an IRC client, so it's fully automated and has many useful features. For example, it can automatically send logs via e-mail, and even compress them. It can also be restarted from a cron job after termination.