What is unix and what's unix-like?

But unix may not be Unixand Unix is not always UNIX. UNIX in all caps refers to the Trademark of The Open Group Unix is the genericized trademark of UNIX-Like systems. unix is the common term for UNIX like system. share Share a link to this answer Copy link |improve this answer edited Oct 18 '09 at 2:36 answered Sep 29 '09 at 21:40 salsal
Next, which is better Linux or Unix?
UNIX is not portable but Linux is portable and is booted from a USB stick which is a big plus on the side of Linux. The threat detection and solution procedures, while UNIX users require a longer wait time to get the proper bug fixing patch threat detection, and the solution is quick in Linux because Linux is mainly community-driven.
One may also ask, is Unix, Linux and Solaris the same thing? My short answer is that Unix and Linux are not at all the same thing, though Linux evolved from the world of Unix, and that Solaris is indeed a "flavor" or version of Unix from Sun Microsystems.
Consequently, is unix based on linux or linux based on unix?
A Linux-based system is a modular Unix-like operating system, deriving much of its basic design from principles established in Unix during the 1970s and 1980s. Such a system uses a monolithic kernel, the Linux kernel, which handles process control, networking, access to the peripherals, and file systems.
Additionally, how to pkg upgrade on freenas ( unix )-unix and linux?
Then I created a volume (ZFS) over 3*5TB harddisks. Last I logged in via ssh as root and tried to pkg upgrade all packages. This wouldn't work:

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Why was berkeley unix originally called berkeley unix?

BSD was initially called Berkeley Unix because it was based on the source code of the original Unix developed at Bell Labs. In the 1980s, BSD was widely adopted by workstation vendors in the form of proprietary Unix variants such as DEC Ultrix and Sun Microsystems SunOS due to its permissive licensing...

Is there a unix like operating system called xv6?

Xv6, a simple Unix-like teaching operating system Introduction Xv6 is a teaching operating system developed in the summer of 2006 for MIT's operating systems course, 6.828: Operating System Engineering. In 2019, we ported xv6 to RISC-V for a new undergraduate class 6.S081. Xv6 sources and text The latest xv6 source and text are available via

How are permissions managed in a unix like system?

Permissions on Unix-like systems are managed in three distinct scopes or classes. These scopes are known as user, group, and others . When a file is created on a Unix-like system, its permissions are restricted by the umask of the process that created it. Files and directories are owned by a user.

Is the getopt program universal to unix like systems?

It is a part of the POSIX specification, and is universal to Unix-like systems. It is also the name of a Unix program for parsing command line arguments in shell scripts.

What does chmod stand for in unix like operating system?

On Unix-like operating systems, a set of flags associated with each file determines who can access that file, and how they can access it. These flags are called file permissions or modes, as in "mode of access." The command name chmod stands for "change mode."

What is unix like system?

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.

Is there a unix like os called fuzix?

There have been lots of forks of it over the years, and a project called FuzixOS aims to make a useful Z80 Unix-like OS. Of course, 1980 Unix was a lot different from modern-day Linux, but it is still closer to a modern system than CP/M.

What does fhs stand for in unix like operating system?

FHS defines the directory structure and content in UNIX-like operating systems. It is based on the older standard FSSTND (Filesystem Standard).

What does it mean to have a unix like operating system?

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.

Are there any unix like tools for windows?

A Unix-like environment and command-line interface for Microsoft Windows can be provided using the following softwares. Cygwin provides native integration of Windows-based applications, data, and other system resources with applications, software tools, and data of the Unix-like environment.

What does scp stand for in unix like operating system?

Updated: 11/16/2019 by. On Unix-like operating systems, thescp command copies files over a secure, encrypted network connection. scp stands for "secure copy.". It is similar to the standard Unix command, cp, but it operates over a secure network connection.

What is unix like?

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.

What is a null file in a linux or unix-like system?

What is a null (/dev/null) file in a Linux or Unix-like systems? /dev/null is nothing but a special file that discards all data written to it. The length of the null device is always zero. In this example, first, send output of date command to the screen and later to the /dev/null i.e. discards date command output:

How to install backtrader on a unix like os?

First downloading a release or the latest tarball from the github site: And after unpacking run the command: Download a release or the latest tarball from the github site: And then copy the backtrader package directory to your own project. Under a Unix-like OS for example:

Is there such thing as a unix like operating system?

Linux was not one of those branches. In fact, Linux was born as an alternative to UNIX with the goal of being UNIX-compatible, which explains why the two have a lot of similarities and why they are often conflated. In that sense, Linux is a UNIX-like, not a UNIX-based, operating system.

What does " unix-like " mean in computer science?

The umbrella-term Unix-like also refers to clones of Unix. A clone is software that performs in a similar way to other software but does not have the same source code. The way that the prominent Unix clones act is so, well, er, Unix-like that often computer scientists and expert technicians simply refer to them as Unix.

Is there a unix like subsystem in windows nt?

Windows NT-type systems have a POSIX environmental subsystem. Subsystem for Unix-based Applications (previously Interix) provides Unix-like functionality as a Windows NT subsystem (discontinued).

Are there any unix like systems out there?

Dennis Ritchie, one of the original creators of Unix, expressed his opinion that Unix-like systems such as Linux are de facto Unix systems. Eric S. Raymond and Rob Landley have suggested that there are three kinds of Unix-like systems: Those systems with a historical connection to the AT&T codebase.