Whois & Analysis for unix.com

A Unix shell is a command-line interpreter or shell that provides a traditional Unix-like command line user interface.

Users direct the operation of the computer by entering commands as text for a command line interpreter to execute, or by creating text scripts of one or more such commands.

Users typically interact with a Unix shell using a terminal emulator, however, direct operation via serial hardware connections, or networking session, are common for server systems.

All Unix shells provide filename wildcarding, piping, here documents, command substitution, variables and control structures for condition-testing and iteration.

macOS (pronounced; previously Mac OS X, then OS X) is the current series of Unix-based graphical operating systems developed and marketed by Apple Inc. designed to run on Apple's Macintosh computers ("Macs"), having been preinstalled on all Macs since 2002.

Within the market of desktop, laptop and home computers, and by web usage, it is the second most widely used desktop OS after Microsoft Windows.

HP-UX (from "Hewlett Packard Unix") is Hewlett Packard Enterprise's proprietary implementation of the Unix operating system, based on UNIX System V (initially System III) and first released in 1984.

Recent versions support the HP 9000 series of computer systems, based on the PA-RISC instruction set architecture, and HP Integrity systems, based on Intel's Itanium architecture.

A Unix-like (sometimes referred to as UN*X or *nix) operating system is one that behaves in a manner similar to a Unix system, while not necessarily conforming to or being certified to any version of the Single UNIX Specification.

A Unix-like application is one that behaves like the corresponding Unix command or shell.

There is no standard for defining the term, and some difference of opinion is possible as to the degree to which a given operating system or application is "Unix-like".

SunOS is a Unix-branded operating system developed by Sun Microsystems for their workstation and server computer systems.

The SunOS name is usually only used to refer to versions 1.0 to 4.1.4, which were based on BSD, while versions 5.0 and later are based on UNIX System V Release 4, and are marketed under the brand name Solaris.