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I use Fedora. Today I found GNU (on the web) about which I didn't know till yesterday. I knew that GNU is a Unix-like operating system that is free software but I didn't get why they say GNU's "Not Unix".

closed as unclear what you're asking by Timo, Jenny D, Anthon, Jeff Schaller, Archemar Apr 21 '16 at 11:46

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    en.wikipedia.org/wiki/Unix – Anthon Apr 21 '16 at 7:46
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    @Anthon I know Unix but in-spite of a Unix-like system, why GNU say "Not Unix"? – user166847 Apr 21 '16 at 7:51
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    If you have a different question about what you did not get, don't post it in a comment, post it as a new question. Your post clearly and unambiguously asks two times for the same thing: "What is meant by Unix in GNU's not Unix", so if you follow the link that will answer your question. – Anthon Apr 21 '16 at 7:55
  • @user166847 See if my edit is in accord with what you meant to ask. – dr01 Apr 21 '16 at 8:01
  • @Anthon I've revised the post. Does it look clear now? – user166847 Apr 21 '16 at 8:34
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The GNU project chose its recursive acronym for "GNU's Not Unix!" because GNU's design is Unix-like, but differs from it by being free software (while the original Unix was closed-source) and containing no original Unix code (i.e. has been entirely rewritten).

  • Care to explain the downvote? – dr01 Apr 21 '16 at 8:08
  • OK; I got that they say "Not Unix" because it is free unlike Unix, plus doesn't contain any Unix code! – user166847 Apr 21 '16 at 8:11
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    It seems text is taken from wikipedia article on GNU! – Pandya Apr 22 '16 at 12:04
  • Yes, this information is taken from Wikipedia. I didn't directly quote it since I wanted to add some more information. – dr01 Apr 22 '16 at 12:48

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