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A comment on Useful Unix commands for exploring data. Parent comment

Re:Useful Unix commands for exploring data by barrkel on Thursday August 28, 2014 @05:19AM (#8236493) 

    > open('tmp.rb').each_line.lazy
    NoMethodError: undefined method `lazy' for #<Enumerator: #<File:Procfile>:each_line>
Not everybody is using Ruby 2.0.
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