read file in ruby with relative path

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# You can get current directory (directory of current file) with this

File.dirname(__FILE__)

# You can then join it with relative path to the root

File.join(File.dirname(__FILE__), '../../')

# Or you can use expand_path to convert relative path to absolute.

File.expand_path('../../Gemfile', File.dirname(__FILE__))

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read file in ruby with relative path

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