1Devel::CheckOS::FamilieUss(e3r)Contributed Perl DocumentDaetvieoln::CheckOS::Families(3)
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NAME

6       Devel::CheckOS::Families - what OS "families" are supported "out of the
7       box" by Devel::CheckOS and Devel::AssertOS?
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WHAT IS AN OS FAMILY

10       Computing platforms fall into several categories.  For example, there
11       is the category of Unix-a-likes.  Each of these categories is a
12       "family".  A platform can fall into several families.
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THE Unix FAMILY

15       Broadly speaking, these are platforms where:
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17       Devices are represented as pseudo-files in the filesystem
18       Symlinks and hardlinks are supported in at least some filesystems
19       "Unix-style" permissions are supported
20           That is, there are seperate read/write/execute permissions for file
21           owner, group and anyone.  This implies the presence of multiple
22           user accounts and user groups.  Permissions may not be supported on
23           all filesystems.
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25       The filesystem has a single root
26       The C API for the operating system is largely POSIX-compatible
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THE Linux FAMILY

29       This includes both ordinary Linux and Android. Plain old Linux will
30       match 'Linux'. Android will match both that and 'Android'.
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THE Linux::Debian FAMILY

33       Up until version 1.84 this wasn't a family, and would match any
34       platform which claimed to be Debian via "lsb_release -i" or on which a
35       file called "/etc/debian_version" existed. That meant that as well as
36       matching real Debian, it would also match Ubuntu, Raspbian, and so on.
37       As of version 1.85 "Linux::Debian" has become a family of all the
38       Debian-based Linuxes. If you want to test which particular family
39       member you're on then look at list_family_members("Linux::Debian") to
40       see what's available.
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42       NB the difference between "Linux::RealDebian" (which uses "lsb_release"
43       for identification) and "Linux::UnknownDebianLike" (which uses the
44       existence of "/etc/debian_version" for identification). In particular
45       beware that some *very* old Debians don't have "lsb_release" available
46       and so will be detected as "Linux::UnknownDebianLike".
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THE MicrosoftWindows FAMILY

49       This includes any version of Windows and also includes things like
50       Cygwin which run on top of it.
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THE DEC, Sun, and Apple FAMILIES

53       These include any OS written by, respectively, DEC, Sun, and Apple.
54       They exist because, while, eg, Mac OS Classic and Mac OS X are very
55       different platforms, they do support some unique features - such as
56       AppleScript.
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THE Realtime FAMILY

59       This is for all real-time OSes.  So far, it only includes QNX.
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THE EBCDIC FAMILY

62       OSes which use EBCDIC instead of ASCII.
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65       Copyright 2023 David Cantrell <david@cantrell.org.uk>
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67       This documentation is free-as-in-speech.  It may be used, distributed
68       and modified under the terms of the Creative Commons Attribution-Share
69       Alike 2.0 UK: England & Wales License, whose text you may read at
70       <http://creativecommons.org/licenses/by-sa/2.0/uk/>.
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CONSPIRACY

73       This documentation is also free-as-in-mason.
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77perl v5.38.0                      2023-07-20       Devel::CheckOS::Families(3)
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