{"id":7626,"date":"2021-03-11T11:45:14","date_gmt":"2021-03-11T11:45:14","guid":{"rendered":"https:\/\/garfnet.org.uk\/cms\/?p=7626"},"modified":"2025-08-18T21:02:36","modified_gmt":"2025-08-18T21:02:36","slug":"gnus-not-unix","status":"publish","type":"post","link":"https:\/\/garfnet.org.uk\/cms\/2021\/03\/11\/gnus-not-unix\/","title":{"rendered":"GNU&#8217;s not Unix? If not then why not?"},"content":{"rendered":"<p>The GNU\/Linux family of operating systems (e.g. Debian, Fedora, KDE Neon, Kubuntu, LinuxMint, Red Hat, Ubuntu, Xubuntu <a class=\"external\" title=\"This link will open in a new window or tab\" href=\"https:\/\/distrowatch.com\/\" target=\"_blank\" rel=\"nofollow noopener\">et al<\/a>) are <strong>not<\/strong> permitted to use the UNIX trademark. Instead, they are described as &#8220;<a class=\"external\" title=\"This link will open in a new window or tab\" href=\"https:\/\/unix.stackexchange.com\/questions\/87686\/what-makes-an-operating-system-unix-like\" target=\"_blank\" rel=\"nofollow noopener\">unix-like<\/a>&#8220;. In fact, the &#8220;GNU&#8221; in GNU\/Linux (c\/w the &#8220;G&#8221; in GIMP) is a recursive acronym meaning GNU&#8217;s not Unix. In a nutshell, the GNU\/Llinux family of operating systems do all sorts of clever unixy stuff, but they <a href=\"https:\/\/unix.stackexchange.com\/questions\/278018\/why-does-gnu-say-it-is-not-unix\" target=\"_blank\" rel=\"noopener\">cannot <em>legally<\/em> call themselves UNIX<\/a>.<\/p>\n<p>Whereas Apple&#8217;s OSX <strong>is&nbsp;<\/strong> UNIX. In fact, most releases of OSX are amongst the few OS&#8217;s that are actually certified as Unix. Which means it <em>is<\/em> permitted by the trademark&#8217;s owner, the Open Group, to use the UNIX\u00ae trademark.<\/p>\n<p>The <em>odd man out<\/em> insofar as modern operating systems are concerned is actually Microsoft Windows. Despite some fairly major changes in the late nineties and early noughties, Windows definitely <em>ain&#8217;t<\/em> Unix. Indeed Windows still displays its <a class=\"external\" title=\"This link will open in a new window or tab\" href=\"https:\/\/en.wikipedia.org\/wiki\/Microsoft_Windows_version_history\" target=\"_blank\" rel=\"nofollow noopener\">DOS origins<\/a> (backslash directory delimiters, use of &#8220;drive letters&#8221; etc.) But even Microsoft seems to be waking up to the fact that the future is <em>unix-like<\/em>. Its Powershell command line interface now allows <a class=\"external\" title=\"This link will open in a new window or tab\" href=\"https:\/\/mathieubuisson.github.io\/powershell-linux-bash\/\" target=\"_blank\" rel=\"nofollow noopener\">many unix-like commands<\/a> on Windows. And it estimates that <a class=\"external\" title=\"This link will open in a new window or tab\" href=\"https:\/\/www.zdnet.com\/article\/linux-now-dominates-azure\/\" target=\"_blank\" rel=\"nofollow noopener\">50% of its Azure cloud servers now run GNU\/Linux<\/a>, rather than its own Windows Server.<\/p>\n<p>Of course, Linux has found its way into all sorts of <em>other<\/em> places one may not immediately think of as &#8220;computers&#8221;, for example, routers, NAS-boxes and smart TV&#8217;s. But perhaps most significantly, the Linux kernel is at the heart of the planet&#8217;s most <a class=\"external\" title=\"This link will open in a new window or tab\" href=\"https:\/\/www.businesswire.com\/news\/home\/20170403005635\/en\/Android-Overtakes-Windows-Time-%E2%80%93-StatCounter\" target=\"_blank\" rel=\"nofollow noopener\">popular consumer operating system<\/a> ever, <a class=\"external\" title=\"This link will open in a new window or tab\" href=\"https:\/\/www.androidauthority.com\/android-linux-784964\/\" target=\"_blank\" rel=\"nofollow noopener\">Android<\/a>. Which appeals to those of us who wish to divorce our mobile devices from Google, and turn them into serious handheld computers. We can leverage Android&#8217;s Linux subsystem in our favour by <a class=\"external\" title=\"This link will open in a new window or tab\" href=\"https:\/\/www.androidcentral.com\/root\" target=\"_blank\" rel=\"nofollow noopener\">rooting<\/a> our smartphones. \ud83d\ude42<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The GNU\/Linux family of operating systems (e.g. Debian, Fedora, KDE Neon, Kubuntu, LinuxMint, Red Hat, Ubuntu, Xubuntu et al) are not permitted to use the UNIX trademark. Instead, they are described as &#8220;unix-like&#8220;. In fact, the &#8220;GNU&#8221; in GNU\/Linux (c\/w the &#8220;G&#8221; in GIMP) is a recursive acronym meaning GNU&#8217;s not Unix. In a nutshell,&#8230;<\/p>\n","protected":false},"author":1,"featured_media":7635,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[12,6,691,18,692],"tags":[],"class_list":["post-7626","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faq","category-journal","category-linux","category-technology","category-windows"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>GNU&#039;s not Unix? 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