Is UNIX an open source OS ? Post: 302911251

Sponsored Content

Operating Systems Linux Fedora Is UNIX an open source OS ? Post 302911251 by Don Cragun on Wednesday 30th of July 2014 05:34:57 PM

07-30-2014

Registered User

Quote:

Originally Posted by Corona688

Most of your criticisms are quite true! But this one hasn't been true for 10 years. The old threading model -- which amounted to cloned processes sharing the same memory segments -- got thrown out when someone found a big design flaw, they replaced it with NPTL. That means "native POSIX threading library". I expect that's a fair bit closer to compliance.

I expect it would be quite a lot easier for an OS to become POSIX compliant if the tests were easier to get.

Thanks for letting me know. I said: many GNU Utilities are coming closer to meeting POSIX requirements.
I should have said: many GNU Utilities, Linux libraries, and the Linux kernel are coming closer to meeting POSIX requirements.

Surprisingly enough, the vendors who fund the development and maintenance of the UNIX and POSIX conformance test suites so that their systems can be branded or certified haven't accepted the idea that they should give away the test suites so their competitors in the open source community will have an easier time putting them out of business. Nonetheless, I believe some Linux distro vendors do occasionally pay The Open Group to run the tests for them to see what areas still need work to actually become POSIX certified or UNIX branded. Certification or branding will happen some day, but we aren't there yet.

These 3 Users Gave Thanks to Don Cragun For This Post:

Don Cragun

View Public Profile for Don Cragun

Find all posts by Don Cragun

5 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

open source antivirus

Hello What is the best open source anti virus? Thanks

2. Shell Programming and Scripting

Open Source

Hi Friends I'm new to this UNIX - I'm working on the porting project from Solaris To Linux i just want to map some commands from solaris to Linux so can any one please tell me how to get the source code of the commands like "ls", "cu", "du" Regards sabee

3. UNIX and Linux Applications

need open source KB software for UNIX

Anyone know of a good open source Knowledge Base software for UNIX that can connect to an Oracle back end?

4. UNIX for Dummies Questions & Answers

Open-source projects to learn concurrency-managed network programming in Unix?

Hi, I am a mid-career programmer with extensive experience in object-oriented design and development in C, C++, and C#. I've written a number of multi-threaded server applications and background services, although my grasp of networking protocols is a bit weak: my current job drifted away from...

5. UNIX for Advanced & Expert Users

UNIX/Linux inventory - Open Source

Hello guys, I need an open source tool that can list all the softwares installed in my unix/linux servers, the tool should list all the softwares installed and the current version, grouped by the hostname, anybody know any solution for this specific problem? Thanks guys, have a good day!

LEARN ABOUT MOJAVE

doctools_lang_faq

doctools_lang_faq(n)						Documentation tools					      doctools_lang_faq(n)

__________________________________________________________________________________________________________________________________________________

NAME

       doctools_lang_faq - doctools language faq

DESCRIPTION

OVERVIEW

   WHAT IS THIS DOCUMENT?
       This  document is currently mainly a placeholder, to be filled with commonly asked questions about the doctools markup language and compan-
       ions, and their answers.

       Please report any questions (and, if possible, answers) we should consider for this document in the category  doctools  of  the	Tcllib	SF
       Trackers [http://sourceforge.net/tracker/?group_id=12883].

EXAMPLES

   WHERE DO I FIND DOCTOOLS EXAMPLES?
       The most examples of doctools markup currently known can be found in the Tcllib and Tklib package bundles where basically the documentation
       of all packages is written in it.  In Tcllib you will also find the sources for the doctools documentation themselves, which makes  use	of
       nearly all of the available markup commands.  You need one of

       [1]    A  CVS  snapshot	of  Tcllib.  How  to  retrieve	such  a  snapshot  and the tools required for this are described at http://source-
	      forge.net/cvs/?group_id=12883

       [2]    A Tcllib release archive. They are available at http://sourceforge.net/project/showfiles.php?group_id=12883

BUGS, IDEAS, FEEDBACK
       This document, will undoubtedly contain bugs and other problems.  Please report any such in the category doctools of the Tcllib SF Trackers
       [http://sourceforge.net/tracker/?group_id=12883].  Please also report any ideas for enhancements you may have for either the package and/or
       the documentation.

SEE ALSO

       doctools_lang_cmdref, doctools_lang_intro, doctools_lang_syntax

KEYWORDS

       doctools commands, doctools language, doctools markup, doctools syntax, examples, faq, markup, semantic markup

CATEGORY

       Documentation tools

COPYRIGHT

       Copyright (c) 2007 Andreas Kupries <andreas_kupries@users.sourceforge.net>

doctools								1.0						      doctools_lang_faq(n)