fortune is a program that displays a

pseudorandom A pseudorandom sequence of numbers is one that appears to be statistically random, despite having been produced by a completely deterministic and repeatable process. Background The generation of random numbers has many uses, such as for rand ...

message from a database of quotations that first appeared in

Version 7 Unix Seventh Edition Unix, also called Version 7 Unix, Version 7 or just V7, was an important early release of the Unix operating system. V7, released in 1979, was the last Bell Laboratories release to see widespread distribution before the commercial ...

. The most common version on modern systems is the

BSD The Berkeley Software Distribution or Berkeley Standard Distribution (BSD) is a discontinued operating system based on Research Unix, developed and distributed by the Computer Systems Research Group (CSRG) at the University of California, Berk ...

fortune, originally written by

Ken Arnold Kenneth Cutts Richard Cabot Arnold (born 1958) is an American computer programmer well known as one of the developers of the 1980s dungeon-crawling video game ''Rogue'', for his contributions to the original Berkeley ( BSD) distribution of Uni ...

. Distributions of fortune are usually bundled with a collection of themed files, containing sayings like those found on

fortune cookie A fortune cookie is a crisp and sugary cookie wafer usually made from flour, sugar, vanilla, and sesame seed oil with a piece of paper inside, a "fortune", usually an aphorism, or a vague prophecy. The message inside may also include a Chine ...

s (hence the name), quotations from famous people, jokes, or poetry. As of November 2017, the quotations (with the exception of tips relevant to system operation) have been removed from FreeBSD entirely after user complaints regarding quotations from

Adolf Hitler Adolf Hitler (; 20 April 188930 April 1945) was an Austrian-born German politician who was dictator of Nazi Germany, Germany from 1933 until Death of Adolf Hitler, his death in 1945. Adolf Hitler's rise to power, He rose to power as the le ...

being contained in some of the files. fortune is predominantly found on

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, although not necessarily conforming to or being certified to any version of the Single UNIX Specification. A Unix-li ...

systems, but clients for other platforms also exist. Often, users on text-mode Unix terminals will place this command into either their .profile or .logout files to display them at logon and logout, respectively. It is also used to generate text input for certain

XScreenSaver XScreenSaver is a free and open-source collection of 240+ screensavers for Unix, macOS, iOS and Android operating systems. It was created by Jamie Zawinski in 1992 and is still maintained by him, with new releases coming out several times ...

modes. It is possible to pipe fortune into the

cowsay cowsay is a program that generates ASCII art pictures of a cow with a message. It can also generate pictures using pre-made images of other animals, such as Tux the Penguin, the Linux mascot. It is written in Perl. There is also a related prog ...

command, to add more humor to the dialog.

Content

Most Unix systems use fortunes which are slanted heavily toward the user base of Unix, and thus contain many obscure jokes about

computer science Computer science is the study of computation, automation, and information. Computer science spans theoretical disciplines (such as algorithms, theory of computation, information theory, and automation) to practical disciplines (includi ...

and

computer programming Computer programming is the process of performing a particular computation (or more generally, accomplishing a specific computing result), usually by designing and building an executable computer program. Programming involves tasks such as anal ...

. Other favoured sources include quotations from

science fiction Science fiction (sometimes shortened to Sci-Fi or SF) is a genre of speculative fiction which typically deals with imaginative and futuristic concepts such as advanced science and technology, space exploration, time travel, parallel uni ...

('' Star Trek'', ''

The Cyberiad ''The Cyberiad'' ( pl, Cyberiada) is a series of humorous science fiction short stories by Polish writer Stanisław Lem, originally published in 1965, with an English translation appearing in 1974. The main protagonists of the series are Trurl a ...

'', '' Doctor Who'', ''

The Hitchhiker's Guide to the Galaxy ''The Hitchhiker's Guide to the Galaxy'' (sometimes referred to as ''HG2G'', ''HHGTTG'', ''H2G2'', or ''tHGttG'') is a comedy science fiction franchise created by Douglas Adams. Originally a 1978 radio comedy broadcast on BBC Radio 4, it ...

'', etc.),

Zippy the Pinhead Zippy the Pinhead is a fictional character who is the protagonist of ''Zippy'', an American comic strip created by Bill Griffith. Zippy's most famous quotation, "Are we having fun yet?", appears in ''Bartlett's Familiar Quotations'' and became a ...

, and the writings of

Ambrose Bierce Ambrose Gwinnett Bierce (June 24, 1842 – ) was an American short story writer, journalist, poet, and American Civil War veteran. His book '' The Devil's Dictionary'' was named as one of "The 100 Greatest Masterpieces of American Literature" by ...

and Dave Barry. Most fortune collections also include a wide variety of more conventionally sourced quotations, jokes, and other short passages. A few distributions include "offensive" dicta, which require the -a or -o options to be passed for viewing. These fortunes often include rude humor and profanity, personal attacks, and controversial comments about religion. Sometimes they are provided by another package, however as of FreeBSD 10.0 the offensive dicta have been removed completely. The exact fortunes vary between each type of Unix, however there seems to be a strong overlap between the FreeBSD and OpenBSD fortune files. The Plan 9 fortune files seem to be much shorter, with many just on 1 line, and the 'offensive' dicta is much stronger. Most Linux distributions, such as Debian (and its derivatives), choose the FreeBSD fortunes to put in their fortune packages, that can be installed through the package manager.

Purpose

One of the included fortunes, from the "goedel" collection of fortunes about fortune itself, sums up the purpose of the program: The original fortune program could be used for the more general task of picking up a random line from a plain-text file. The example of such use is given in th
rc documentation
However, in most modern Unix systems fortune cannot be used this way, since they use an ad hoc file format for fortune files to allow multiline aphorisms.

Fortune files

Conventional versions of fortune use two files for each quotation list: a text file with quotations, each separated by the character "%" on its own line, and a random-access data file generated by the strfile(1) program. Alternative implementations, including those made for display on Web pages, typically use only the text file.

Common options

Several common options exist that change the way command-line versions of fortune behave:

References

External links

* *
A PHP version of the fortune program

The manual page for the original Unix fortune(6) command

Maintenance version of fortune-mod's source code
- on

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