Unix is the topic of this site. Do not use this tag except for questions about the historical UNIX product.

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22
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5answers
2k views

What aspects of Plan 9 have made their way into Unix?

Plan 9 was developed by Bell Labs as a successor to Unix. Although for various reasons it never quite materialized as such, a fair amount of development still went into Plan 9. My question is, what ...
2
votes
2answers
265 views

“Linux supports the dynamic loading of kernel modules. ”

I read in a book written by Robert Love that: Linux supports the dynamic loading of kernel modules. He said this is the difference between Linux and Unix, but I seem to recall there is also KLD ...
6
votes
1answer
686 views

What does 'uni' mean in unistd.h

What does uni mean in unistd.h Does it mean unix? or universal? What is it?
11
votes
1answer
1k views

Why isn't GNU/Linux SUS v3+ compliant?

I am looking for specific details as to why isn't GNU/Linux currently SUS(Single UNIX Specification) v3 or even better SUS v4 compliant? What application apis and user utilities does it miss or ...
4
votes
2answers
2k views

Expansion of the word UNIX?

Is UNIX an acronym? What does it stand for?
16
votes
3answers
878 views

Looking for an old classical Unix toolkit textbook

I am looking for a book about the Unix command-line toolkit (sh, grep, sed, awk, cut, etc.) that I read some time ago. It was an excellent book, but I totally forgot its name. The great thing about ...
11
votes
1answer
345 views

What is the difference between shared memory in early unix systems vs modern unix systems?

How could processes share memory in early versions of UNIX version modern implementations of shared memory?
0
votes
2answers
294 views

New to unix, Where should i start? [duplicate]

Possible Duplicate: Beginning to learn Unix and Linux I was working with .net for the past few years and now i am put into a project that has unix. I really dont know unix. where should i ...
78
votes
6answers
13k views

Is Linux a Unix?

So, there are lots of different versions of Unix out there: HP-UX, AIX, BSD, etc. Linux is considered a Unix clone rather than an implementation of Unix. Are all the "real" Unices actual descendants ...
33
votes
5answers
3k views

Why is there a * When There is Mention of Unix Throughout the Internet?

I've noticed that throughout the Internet, within forums and blog posts, Unix always has a * in the word, whether it is *nix or Un*x, as I noticed at the welcoming banner at the Unix StackExchange ...
29
votes
6answers
6k views

How does a unix or linux system work?

I would like to know how the OS works in a nutshell: The basic components it's built upon How those components work together What makes unix UNIX What makes it so different from other OSs like ...
-2
votes
2answers
259 views

What should every expert know? [closed]

What things should any self-professed UNIX expert have under their belt? I'm looking to fill any gaps in my knowledge. Some things I can think of off the bat: Shell (interactive and scripting) ...