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Full Discussion: How is OS X related to unix
Operating Systems Linux Fedora How is OS X related to unix Post 302311876 by squosl on Wednesday 29th of April 2009 11:10:04 PM
Old 04-30-2009
"one of my lab assignments is to explain the difference between Unix and Linux"

That's not a very fair question for an intro level class.

The really short answer is "Many millions of lines of code".

The not so short answer would be that Unix is an OS, copyright owned by Bell Labs while Linux is a kernel, and depends on a crapload of utilities from the GNU project to put the whole OS together. Linux tries to be POSIX compliant, I'm not sure Unix is entirely POSIX compliant either.

The longer answers would explain the differences in the kernel architectures, schedulers, process tables, device handling, etc. Feelings about how those would work in the "perfect system" are the types of feelings that start flamewars.

Good luck with your class!
 

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ISWPRINT(3)						     Linux Programmer's Manual						       ISWPRINT(3)

NAME
iswprint - test for printing wide character SYNOPSIS
#include <wctype.h> int iswprint(wint_t wc); DESCRIPTION
The iswprint() function is the wide-character equivalent of the isprint(3) function. It tests whether wc is a wide character belonging to the wide-character class "print". The wide-character class "print" is disjoint from the wide-character class "cntrl". The wide-character class "print" contains the wide-character class "graph". RETURN VALUE
The iswprint() function returns nonzero if wc is a wide character belonging to the wide-character class "print". Otherwise, it returns zero. ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7). +-----------+---------------+----------------+ |Interface | Attribute | Value | +-----------+---------------+----------------+ |iswprint() | Thread safety | MT-Safe locale | +-----------+---------------+----------------+ CONFORMING TO
POSIX.1-2001, POSIX.1-2008, C99. NOTES
The behavior of iswprint() depends on the LC_CTYPE category of the current locale. SEE ALSO
isprint(3), iswctype(3) COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. GNU
2015-08-08 ISWPRINT(3)
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