POSIX is an acronym for "Portable Operating System Interface", a family of standards specified by the IEEE for maintaining compatibility between operating systems.

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How can we obtain a temporary filename in a standard-conforming IEEE 1003.1 script?

How can we obtain a temporary file name in a standard-conforming shell script (using no commands or extensions which are not described the 2013 edition of IEEE 1003.1). There doesn't appear to be any ...
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Is there such a scheduler and is it feasible?

I read about a scheduling algorithm called EDD which always works on the next deadline and that is feasible. Would it also be feasible to within each time windows or slice, work on all processor or ...
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When and how was the double-dash (--) introduced as an end of options delimiter in Unix/Linux?

I don't think the shell/utilities in historical Unix nor in something as "recent" as 4.4BSD supported using a double-dash(or two consecutive hyphens) as an end of options delimiter. With FreeBSD, you ...
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Rvm posix error on arm Beagle bone black

I'm trying to run rvm on Angstrom linux on BBB. When I try to launch rvm, I obtain: RVM can not be run with `set -o posix`, please turn it off and try again. Someone know about this?