+Linux is a family of [open-source](/wiki/open_source) Unix-like operating systems. At its heart lies the Linux [kernel](/wiki/kernel), a robust core powering everything from phones to servers. It champions freedom and community, offering a versatile foundation for innovation worldwide.
+## See also
+- [Operating System](/wiki/operating_system)
+- [Free Software](/wiki/free_software)
+- [Command Line](/wiki/command_line)
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