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Fortune (Unix)
fortune is a simple program that displays a pseudorandom message from a database of quotations that first appeared in Version 7 Unix.〔(【引用サイトリンク】title=fortune -- Display Random Quotations )〕 The most common version on modern systems is the BSD fortune, originally written by Ken Arnold. Distributions of fortune are usually bundled with a collection of themed files, containing sayings like those found on fortune cookies (hence the name), quotations from famous people, jokes, or poetry.
fortune is predominantly found on Unix-like 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 modes. Many people choose to pipe fortune into the cowsay 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 and computer programming. Other favoured sources include quotations from science fiction (''Star Trek'', ''The Cyberiad'', ''Doctor Who'', ''The Hitchhiker's Guide to the Galaxy'', etc.), Zippy the Pinhead, and the writings of Ambrose Bierce 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, 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 Ubuntu, choose the FreeBSD fortunes to put in their fortune packages, that can be installed through the package manager.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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