Decoded: GNU Coreutils
Or, just browse the originals:<p><a href="https:&#x2F;&#x2F;www.tuhs.org&#x2F;cgi-bin&#x2F;utree.pl?file=V7&#x2F;usr&#x2F;src" rel="nofollow">https:&#x2F;&#x2F;www.tuhs.org&#x2F;cgi-bin&#x2F;utree.pl?file=V7&#x2F;usr&#x2F;src</a>
<a href="https:&#x2F;&#x2F;www.tuhs.org&#x2F;cgi-bin&#x2F;utree.pl?file=4.3BSD&#x2F;usr&#x2F;src" rel="nofollow">https:&#x2F;&#x2F;www.tuhs.org&#x2F;cgi-bin&#x2F;utree.pl?file=4.3BSD&#x2F;usr&#x2F;src</a><p>and some of their current decedents:<p><a href="https:&#x2F;&#x2F;svnweb.freebsd.org&#x2F;" rel="nofollow">https:&#x2F;&#x2F;svnweb.freebsd.org&#x2F;</a>
<a href="http:&#x2F;&#x2F;cvsweb.openbsd.org&#x2F;cgi-bin&#x2F;cvsweb&#x2F;" rel="nofollow">http:&#x2F;&#x2F;cvsweb.openbsd.org&#x2F;cgi-bin&#x2F;cvsweb&#x2F;</a>
<a href="http:&#x2F;&#x2F;cvsweb.netbsd.org&#x2F;bsdweb.cgi&#x2F;src&#x2F;?only_with_tag=MAIN" rel="nofollow">http:&#x2F;&#x2F;cvsweb.netbsd.org&#x2F;bsdweb.cgi&#x2F;src&#x2F;?only_with_tag=MAIN</a>
<a href="https:&#x2F;&#x2F;gitweb.dragonflybsd.org&#x2F;dragonfly.git" rel="nofollow">https:&#x2F;&#x2F;gitweb.dragonflybsd.org&#x2F;dragonfly.git</a><p>conveniently all in one source tree, self hosting, and buildable with a single command.<p>it is almost as if they were designed as part of a single coherent operating system along with the very C language itself..<p>as discussed previously, typically with more intelligible sources:<p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=14542938" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=14542938</a><p>and usually with better man pages (<a href="https:&#x2F;&#x2F;www.freebsd.org&#x2F;cgi&#x2F;man.cgi" rel="nofollow">https:&#x2F;&#x2F;www.freebsd.org&#x2F;cgi&#x2F;man.cgi</a>)<p>unix came first. gnu and posix came later.<p>the unix way is the standard, not posix, and not gnu.<p>from stallman himself (<a href="https:&#x2F;&#x2F;stallman.org&#x2F;articles&#x2F;posix.html" rel="nofollow">https:&#x2F;&#x2F;stallman.org&#x2F;articles&#x2F;posix.html</a>):<p>&quot;
It seemed to me that nobody would ever say &quot;IEEEIX&quot;, since the pronunciation would sound like a shriek of terror; rather, everyone would call it &quot;Unix&quot;. That would have boosted AT&amp;T, the GNU Project&#x27;s rival, an outcome I did not want. So I looked for another name, but nothing natural suggested itself to me.<p>So I put the initials of &quot;Portable Operating System&quot; together with the same suffix &quot;ix&quot;, and came up with &quot;POSIX&quot;. It sounded good and I saw no reason not to use it, so I suggested it. Although it was just barely in time, the committee adopted it. 
&quot;<p>so, as can be seen, posix is RMS&#x27;s way of keeping people from calling unix unix, 
and as a result today, now that AT&amp;T Unix is nearly dead,
people lose track of the fact that BSD <i>is</i> Unix, and don&#x27;t know what Unix actually is, and are forced to &#x27;decode&#x27; the sometimes deliberately less clear cloned sources not knowing to look at the simpler original.