http://www.bing.com:80/search?q=Is+Unix+UISearch resultshttp://www.bing.com:80/s/a/rsslogo.gifhttp://www.bing.com:80/search?q=Is+Unix+UICopyright © 2026 Microsoft. All rights reserved. These XML results may not be used, reproduced or transmitted in any manner or for any purpose other than rendering Bing results within an RSS aggregator for your personal, non-commercial use. Any other use of these results requires express written permission from Microsoft Corporation. By accessing this web page or using these results in any manner whatsoever, you agree to be bound by the foregoing restrictions.https://www.opengroup.org/membership/forums/platform/unixThe success of the UNIX approach led to a large number of “look-alike” operating systems, often divergent in compatibility and interoperability. To address this, vendors and users joined together in the 1980s to create the POSIX® standard and later the Single UNIX Specification. Formal UNIX certification started in 1995, with all the major UNIX vendors certifying their products. Most ...Thu, 02 Apr 2026 10:03:00 GMThttps://stackoverflow.com/questions/5163144/what-are-the-special-dollar-sign-shell-variablesIn Bash, there appear to be several variables which hold special, consistently-meaning values. For instance, ./myprogram &; echo $! will return the PID of the process which backgrounded myprog...Thu, 02 Apr 2026 13:17:00 GMThttps://stackoverflow.com/questions/12741710/what-does-mean-in-a-shell-scriptI came across a shell script that contains a statement like, if [ $val -eq $? ] What does $? mean here?Mon, 30 Mar 2026 05:35:00 GMThttps://stackoverflow.com/questions/7366775/what-does-the-line-bin-sh-mean-in-a-unix-shell-scriptWhen you try to execute a program in unix (one with the executable bit set), the operating system will look at the first few bytes of the file. These form the so-called "magic number", which can be used to decide the format of the program and how to execute it.Thu, 02 Apr 2026 12:34:00 GMThttps://www.opengroup.org/unix-systemsUNIX System Test Suites -- Technical Data Sheet Executive Summary The Open Group has expanded it's range of test suites for the Single UNIX Specification and the associated UNIX certification program. This is an opportunity for leading UNIX system suppliers suppliers to acquire state-of-the-art test tools to ensure the development of conformant UNIX® System products and to demonstrate their ...Thu, 02 Apr 2026 17:41:00 GMThttps://stackoverflow.com/questions/78493/what-does-mean-in-the-shellEvery process in a UNIX like operating system has a (temporarily) unique identifier, the PID. No two processes running at the same time can have the same PID, and $$ refers to the PID of the bash instance running the script. This is very much not a unique idenifier in the sense that it will never be reused (indeed, PIDs are reused constantly). What it does give you is a number such that, if ...Tue, 31 Mar 2026 13:12:00 GMThttps://www.opengroup.org/About Us The Open Group is a global consortium that enables the achievement of business objectives through technology standards and open source initiatives by fostering a culture of collaboration, inclusivity, and mutual respect among our diverse group of 900+ memberships. Our Membership includes customers, systems and solutions suppliers, tool vendors, integrators, academics, and consultants ...Thu, 02 Apr 2026 10:03:00 GMThttps://stackoverflow.com/questions/1552749/difference-between-cr-lf-lf-and-cr-line-break-typesI'd like to know the difference (with examples if possible) between CR LF (Windows), LF (Unix) and CR (Macintosh) line break types.Thu, 02 Apr 2026 22:13:00 GMThttps://stackoverflow.com/questions/1090869/why-is-1-1-1970-the-epoch-timeThe definition of unix time and the epoch date went through a couple of changes before stabilizing on what it is now. But it does not say why exactly 1/1/1970 was chosen in the end.Thu, 02 Apr 2026 03:08:00 GMThttps://stackoverflow.com/questions/46283647/how-to-move-a-running-process-to-backgroundI have a terminal connected to an external machine through ssh and have a process running in it. Is it possible move the execution to the background, so that I can close the ssh connection without...Fri, 03 Apr 2026 04:11:00 GMT