Can I reflect all the methods of a class in Ruby [duplicate]

This question already has answers here: Closed 11 years ago.

Possible Duplicate:

Get list of a开发者_运维技巧 class' methods

Suppose I haven't any reference on hand, and I want to see all the methods in the built-in File class, is that simply available?

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answered in Get list of a class' instance methods

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Sure, try:

File.methods

And if you have the awesome_print gem installed then it formats the list nicely and provides extra information.