The UNIX® Standard | www.opengroup.org
22, మే 2025, · Single UNIX Specification- “The Standard” The Single UNIX Specification is the standard in which the core interfaces of a UNIX OS are measured. The UNIX standard includes a rich feature set, …
unix - what does '$?' mean in a shell script? - Stack Overflow
5, అక్టో 2012, · I came across a shell script that contains a statement like, if [ $val -eq $? ] What does $? mean here?
What are the special dollar sign shell variables? - Stack Overflow
14, సెప్టెం 2012, · In 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 …
Newest 'unix' Questions - Stack Overflow
10, ఏప్రి 2019, · Check if directory exists on a unix server, if not create and move files to, using C# [closed] If had a look but can't find much nformation on how to check if a directory exists on a unix …
unix - What is the meaning of "POSIX"? - Stack Overflow
23, నవం 2009, · Since every Unix does things a little differently -- Solaris, Mac OS X, IRIX, BSD, and Linux all have their quirks -- POSIX is especially useful to those in the industry as it defines a standard …
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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, …
What does the line "#!/bin/sh" mean in a UNIX shell script?
10, సెప్టెం 2011, · When 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", …
How to check if $? is not equal to zero in unix shell scripting?
How to check if $? is not equal to zero in unix shell scripting? Asked 12 years, 10 months ago Modified 3 years, 10 months ago Viewed 357k times
Converting unix time into date-time via excel - Stack Overflow
Explanation Unix system represent a point in time as a number. Specifically the number of seconds* since a zero-time called the Unix epoch which is 1/1/1970 00:00 UTC/GMT. This number of seconds is …
unix - Why is 1/1/1970 the "epoch time"? - Stack Overflow
23, జూన్ 2011, · The 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.
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