Published at LXer:
This will be an ongoing series of articles highlighting lesser known applications for Linux. These articles will be a bit Ubuntu-centric, but these applications should run nicely on your distribution of choice. Also, some of these applications may be a bit more than lesser known, but they are not part of the standard core of applications you see upon a few install of a desktop Linux distribution. This installment will review applications that serve as learning and hobby tools. It will range from beneath the surface of the Earth to orbiting the Earth: Happydigger, Alexandria, Tellico and GPredict.
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