this post was submitted on 17 May 2026
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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I used "LPIC-1 Sicher zur erfolgreichen Linux-Zertifizierung" by Harald Maaßen, published by Rheinwerk Computing (in German), ISBN 978-3-8362-6375-7,v and I liked it quite a lot.
There's quite a few of these books, also in English, and they're all kinda useful.
I work at a large scientific library, so I used it quite a lot to get me a selection of LPIC books. Also, I usually not just read the book, but I had my computer with me, so I could a) try things out that were discussed in the book and b) read up the whole (!)
manpage of any command used in the book. I found that that helped me quite a lot, because it gives you an opportunity to tinker and practice.