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 ambiguous, 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:

		    Use 'bs' (backspace) with most pager programs. To use ANSI, either disable the pager or tell the pager to allow control char-
		    acters.

     -i
     --interactive  This makes go into interactive mode.

		    When 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 '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@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@pragmaticprogrammer.com>

UNIX
								   June 1, 2019 							      UNIX