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Full Discussion: Process file every minute
Top Forums Shell Programming and Scripting Process file every minute Post 302586254 by methyl on Friday 30th of December 2011 08:06:06 PM
Old 12-30-2011
After following this thread for a week my view is unchanged. You cannot capture transient data reliably from transient data files using standard unix tools.

Imho 1.The system design needs attention. In particular the application which is writing these data files. You get a completely different scenario if the application writes files with unique file names and closes each file after processing.

Imho 2. This processing should be in the primary system. Too many times we find complex data processing in Shell tools which should be done in a high level database language.
Throughout this thread we have learnt absolutely nothing about the process which writes these transient data files or the reason for intercepting the files and we have seen no sign of test code, formal testing, and the results of such testing.

Imho 3. This thread is a complete waste of technical resources.
 

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pthread_detach(3T)														pthread_detach(3T)

NAME
pthread_detach() - mark a thread as detached to reclaim its resources when it terminates SYNOPSIS
PARAMETERS
thread Thread whose resources are to be reclaimed immediately when it terminates. DESCRIPTION
is used to detach the thread thread. When thread terminates, its resources will automatically be reclaimed by the system. If thread has already terminated, causes the resources of thread to be reclaimed by the system. does not cause thread to terminate. Once a detached thread has terminated, its resources, including the thread ID, may be reused by the system. The return status of a detached thread is lost when the thread terminates. Calling this function multiple times for the same thread results in undefined behavior. RETURN VALUE
Upon successful completion, returns zero. Otherwise, an error number is returned to indicate the error (the variable is not set). ERRORS
If any of the following occur, the function returns the corresponding error number: [EINVAL] thread does not refer to a joinable thread. [ESRCH] No thread could be found corresponding to thread. AUTHOR
was derived from the IEEE POSIX P1003.1c standard. SEE ALSO
pthread_create(3T), pthread_join(3T), wait(2). STANDARDS CONFORMANCE
Pthread Library pthread_detach(3T)
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