Miscellaneous

Is GCC POSIX-compliant?

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Is GCC POSIX-compliant?

The GNU C Library is also compatible with the ISO POSIX family of standards, known more formally as the Portable Operating System Interface for Computer Environments (ISO/IEC 9945).

Which operating systems are POSIX-compliant?

Examples of some POSIX-compliant systems are AIX, HP-UX, Solaris, and MacOS (since 10.5 Leopard). On the other hand, Android, FreeBSD, Linux Distributions, OpenBSD, VMWare, etc., follow most of the POSIX standard, but they are not certified.

Is Solaris POSIX-compliant?

Solaris supports POSIX (among a number of other standards), but not all things you’ll find on Solaris are strictly POSIX.

Which shells are POSIX-compliant?

which in itself is a link to a shell interpreter – like bash, ksh, etc. Some popular shell languages are POSIX-compliant (Bash, Korn shell), but even they offer additional non-POSIX features which will not always function on other shells.

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Is glibc POSIX compliant?

glibc provides the functionality required by the Single UNIX Specification, POSIX (1c, 1d, and 1j) and some of the functionality required by ISO C11, ISO C99, Berkeley Unix (BSD) interfaces, the System V Interface Definition (SVID) and the X/Open Portability Guide (XPG), Issue 4.2, with all extensions common to XSI (X/ …

Is S3 POSIX compliant?

S3 is not a filesystem, it has its own object access API, and hence it cannot support POSIX file functions.

Is Linux POSIX compliant?

For now, Linux is not POSIX-certified due to high costs, except for the two commercial Linux distributions Inspur K-UX [12] and Huawei EulerOS [6]. Instead, Linux is seen as being mostly POSIX-compliant.

What is POSIX group in Linux?

Posix group is an object class type that is used to represent the POSIX Database group Posix systems. Defined as an auxiliary, the POSIX group is used to extend the groupOfNames objectClass.

Is ZFS a Posix?

ZFS is designed to be a POSIX compliant file system and in most situations, ZFS is POSIX compliant. Modifying existing data with a 100 percent full file system.

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Is CSH POSIX compliant?

On many non-Linux systems, this is an old shell without the POSIX features. Thus bash and ksh (or even csh and tcsh) are better choices than sh. On some systems though, sh is really the same as bash or ksh. It is mostly Bourne-compatible, mostly POSIX-compatible, and has other useful extensions.

Is Macos POSIX compliant?

Mac OSX is Unix-based (and has been certified as such), and in accordance with this is POSIX compliant. POSIX guarantees that certain system calls will be available. Essentially, Mac satisfies the API required to be POSIX compliant, which makes it a POSIX OS.

What is the difference between glibc and libc?

libc is a generic term used to refer to all C standard libraries — there are several. glibc is the most commonly used one; others include eglibc, uclibc, and dietlibc. It’s the “standard library”. It’s exactly like “MSVCRTL” in the Windows world.

Instead, Linux is seen as being mostly POSIX-compliant. This assessment is due to the fact that major Linux distributions follow the Linux Standard Base (LSB) instead of POSIX [9]. LSB aims “to minimize the differences between individual Linux distributions” [14].

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Is Cygwin POSIX-compliant?

Other operating systems that are seen as mostly (but not fully) POSIX-compliant include Android, BeOS, FreeBSD, Haiku, Linux (see below), and VMWare ESXi. For Microsoft Windows, Cygwin provides a largely POSIX-compliant development and run-time environment. Is Linux POSIX-Compliant?

Is Solaris a POSIX compliant operating system?

It is currently unclear whether newer versions of the three Solaris successors, OpenSolaris, Illumos, and OpenIndiana, are classified as fully POSIX-compliant, as well. These operating systems were POSIX-compliant until POSIX 2001.

What does POSIX stand for?

POSIX, or Portable Operating System Interface, is a collection of standards required for maintaining compatibility between operating systems. In this article, we explain what POSIX stands for, determine whether Linux belongs to this category, and list which Linux components must be excluded from this classification.