ri: Ruby Interactive Reference

ri an online reference tool developed by Dave Thomas, the famous pragmatic programmer.

When you have a question about the behavior of a certain method, you can invoke ri to read the brief explanation of the method.

Usage Syntax

Here is simple syntax to use ri

ri [ options ] [ methodname... ]

Here is a complete list of options −

Sr.No.	Command & Description
1	--version,C -v Displays version and exits.
2	--line-length = n -l n Sets the line length for the output (minimum is 30 characters).
3	--synopsis -s Displays just a synopsis.
4	--format = name -f name Uses the name module (default is Plain) for output formatting. Here are the available modules − Tagged − Simple tagged output Plain − Default plain output name should be specified in any of the following forms − Class Class::method Class#method Class.method method.

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