Hello, I'm very new to Ruby, and trying to follow the examples in
'Beginning Ruby' by Peter Cooper

However, I'm completely stuck right at the beginning, trying to work
with File.open

I have

line_count = 0
File.open("text.txt", "r").each { |line| line_count += 1 }
puts line_count

text.txt is in the same folder as my ruby file, and is ~ 100 lines of
text. However, line_count always outputs 0 for me.

I've tried changing the syntax around, but I really have no clue what
the problem may be.

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