Linux's history is littered with distributions that came and went, many of which are long forgotten. There are some, however, that I actually miss, and these are they.
Sudo lets you run any terminal command as another user — hence "substitute user" — but the default and most common use for it ...
If you have a telescope or just like studying the skies, you'll appreciate the Kstars app from the KDE project. It's a planetarium app that lets you explore the stars from your computer. It's packed ...