If you’re rolling up your sleeves and getting your hands dirty with Mac OS X’s Unix underpinnings, you might be interested in a new reference from O’Reilly & Associates called Unix CD Bookshelf, ...
O’Reilly has announced the release of the “Unix CD Bookshelf, Version 3.0” (US$129.95), which provides convenient online access to seven of its popular books: “Unix Power Tools, 3rd Edition,” ...
Single UNIX Specification- “The Standard” The Single UNIX Specification is the standard in which the core interfaces of a UNIX OS are measured. The UNIX standard includes a rich feature set, and its core volumes are simultaneously the IEEE Portable Operating System Interface (POSIX) standard and the ISO/IEC 9945 standard.
unix - what does '$?' mean in a shell script? - Stack Overflow
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unix - How can I pretty-print JSON in a shell script? - Stack Overflow
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 conformance through the UNIX certification program. The Open Group is well established as the premier open systems test supplier and certification ...
The first edition Unix Programmer's Manual dated defines the Unix time as "the time since 00:00:00, Jan. 1, 1971, measured in sixtieths of a second". Because of [the] limited range, the epoch was redefined more than once, before the rate was changed to 1 Hz and the epoch was set to its present value.