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RI(1) Ruby Programmers Reference Guide RI(1)
NAME
ri -- Ruby API reference front end
SYNOPSIS
ri [-Ti] [-d directory] [-f format] [--list-doc-dirs] [--no-standard-docs]
[--[no-]{system|site|gems|home}] [--[no-]use-cache] [--width=width] [target ...]
DESCRIPTION
ri is a CLI front end for the Ruby API reference. You can search and read API reference for
classes and methods with ri.
ri is a part of Ruby.
target can be one of the following forms:
Class for classes
Class::method for class methods
Class#method for instance methods
Class.method for both class and instance methods
method for both class and instance methods
All class names may be abbreviated to their minimum unambiguous form. If a name is ambigu-
ous, all valid options will be listed.
For example:
ri Fil
ri File
ri File.new
ri zip
Note that shell quoting may be required for method names containing punctuation:
ri 'Array.[]'
ri compact
OPTIONS
--version Prints the version of ri.
-T
--no-pager Send output directly to stdout, rather than to a pager.
-d directory
--doc-dir=directory
List of directories from which to source documentation in addition to the
standard directories. May be repeated.
-f FORMAT
--fmt FORMAT
--format=FORMAT
Format to use when displaying output:
ansi, bs, html, plain, simple
Use 'bs' (backspace) with most pager programs. To use ANSI, either disable
the pager or tell the pager to allow control characters.
-i
--interactive This makes ri go into interactive mode.
When ri is in interactive mode it will allow the user to disambiguate lists
of methods in case multiple methods match against a method search string. It
also will allow the user to enter in a method name (with auto-completion, if
readline is supported) when viewing a class.
--list-doc-dirs
List the directories from which ri will source documentation on stdout and
exit.
--no-standard-docs
Do not include documentation from the Ruby standard library, site_lib,
installed gems, or ~/.rdoc.
Equivalent to specifying the options --no-system, --no-site, --no-gems, and
--no-home.
--[no-]system Include documentation from Ruby's standard library. Defaults to true.
--[no-]site Include documentation from libraries installed in site_lib. Defaults to
true.
--[no-]gems Include documentation from RubyGems. Defaults to true.
--[no-]home Include documentation stored in ~/.rdoc. Defaults to true.
--[no-]use-cache
Whether or not to use ri's cache. True by default.
-w width
--width=width Set the width of the output.
ENVIRONMENT
RI Additional options.
PAGER Used as the name of pager program for displaying.
HOME
USERPROFILE
HOMEPATH Path to user's home directory.
FILES
~/.ri Caches recently referenced documents here.
~/.rdoc Searches user-wide documents here.
SEE ALSO
ruby(1) rdoc(1) gem(1)
REPORTING BUGS
Security vulnerabilities should be reported via an email to <security AT ruby-lang.org>.
Reported problems will be published after being fixed.
And you can report other bugs and feature requests via the Ruby Issue Tracking System
(http://bugs.ruby-lang.org). Do not report security vulnerabilities via the system because
it publishes the vulnerabilities immediately.
AUTHORS
Written by Dave Thomas <dave AT pragmaticprogrammer.com>
UNIX November 7, 2012 UNIX
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
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