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Can someone explain to me how to use pass?
(en.wikipedia.org)
From Wikipedia, the free encyclopedia
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 second that. The official documentation is always the place to start.
Then, if you need more info or other explanation I usually recommend looking at the arch wiki. Whether or not you're using arch, instructions there are valid and one of the best you can find.
Finally, this tuto may help you as well