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".
Linux Journal: UNIX Systems Programming: Communication, Concurrency, and Threads by Kay A. Robbins and Steven Robbins
UNIX Systems Programming: Communication, Concurrency, and Threads is the successor to the 1995 Practical UNIX Programming: A Guide to Communication, Concurrency, and Multithreading. This updated ...
UNIX Systems Programming: Communication, Concurrency, and Threads by Kay A. Robbins and Steven Robbins
Computerworld: Unix Tip: Using fuser to determine why a file system is busy
Unix Tip: Using fuser to determine why a file system is busy
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.
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