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https://en.wikipedia.org/wiki/Linux
Linux - Wikipedia
Linux (/ ˈlɪnʊks / LIN-uuks) [16] is a family of open source Unix-like operating systems based on the Linux kernel, [17] an operating system kernel first released on September 17, 1991, by Linus Torvalds. [18][19][20] Linux is typically packaged as a Linux distribution (distro), which includes the kernel and supporting system software and libraries —most of which are provided by third ...