Beneath the Linux surface: the UNIX legacy, a lively ecology

Linux is everywhere. I use it, and so do you. We all do. If not on your laptop, probably on your phone, TV, or some connected accessory. You may also be a GNU/Linux convert, advocate, or even developer. Whichever your exact scenario may be, we are all riding the Linux wave in a way or another. This text is meant for you, fellow free software campaigner, FOSS system administrator, open source hacker, opinionated LKML reader, GNU power user or occasional tech enthusiast of any flavour, as we all share common legacy, collective ancestry, whether we know it or not.