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- The UNIX® Standard | www. opengroup. org
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, and its core volumes are simultaneously the IEEE Portable Operating System Interface (POSIX) standard and the ISO IEC 9945 standard
- unix - What is the meaning of POSIX? - Stack Overflow
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 environment to operate in
- 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, 8 months ago Modified 3 years, 8 months ago Viewed 356k times
- How can I generate Unix timestamps? - Stack Overflow
Related question is "Datetime To Unix timestamp", but this question is more general I need Unix timestamps to solve my last question My interests are Python, Ruby and Haskell, but other approac
- What is the proper way to exit a command line program?
2 Take a look at Job Control on UNIX systems If you don't have control of your shell, simply hitting ctrl + C should stop the process If that doesn't work, you can try ctrl + Z and using the jobs and kill -9 %<job #> to kill it The '-9' is a type of signal You can man kill to see a list of signals
- How to find out what group a given user has? - Stack Overflow
In Unix Linux, how do you find out what group a given user is in via command line?
- 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 called "Unix timestamp" or "Unix time" or "POSIX time" or just "timestamp" and sometimes (confusingly) "Unix epoch"
- unix - How to check permissions of a specific directory . . . - Stack . . .
I know that using ls -l "directory directory filename" tells me the permissions of a file How do I do the same on a directory? I could obviously use ls -l on the directory higher in the hierarchy
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