Linux administration, troubleshooting, Bash scripting, systemd, performance and Linux fundamentals
In this article You Used Linux 20 Times Today Without Knowing It: 12 Real Examples 1. Your Android phone 2. Your wifi router 3. Your smart TV 4. The seat-back screen on your flight 5. Google, and most of the internet 6. Your Kindle and other e-readers 7. Windows recovery disks (yes, really) 8. Modern…
The main Linux families (Debian, Red Hat, SUSE, Arch), release models, popular distros compared, and a simple guide to choosing one.
How Unix, the GNU Project and a student hobby in 1991 became Linux, with the milestones from Debian and Red Hat to Android and containers.
Free software, open source and copyleft explained: where they came from, the four freedoms, and how GPL, MIT and AGPL licences differ in practice.