From: Ben Bleything <ben@...>
Date: 2006-09-13T07:24:12+09:00
Subject: Re: getting the last word in each line

On Wed, Sep 13, 2006, Joe Van Dyk wrote:
> Is there a prettier way to read a file and return the last word in each 
> line?

Well, there's #readlines...

File.readlines('somefile').map {|f| f.split.last}

...which is a little nicer.

> What if I wanted to search the lines (based on a regex) and return the
> last word in each line that satisfied the search criteria?

File.readlines('somefile').map do |f|
  next unless f =~ /regex/
  f.split.last
end

But you'll have nils everywhere that a line was next'ed over...

File.readlines('somefile').reject{|f| f !~ /regex/}.map {|f| f.split.last}

Someone else might have an elegant solution, but these will work :)

Ben