find the size of a csv file in ruby

You can find the size of a CSV file in Ruby by using the File.size method. Here's an example:

main.rb
require 'csv'

filename = 'example.csv'
size = File.size(filename)

puts "The size of #{filename} is #{size} bytes."
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Here, we're requiring the csv module to handle CSV files. Then, we're specifying the name of our CSV file as filename. We're using the File.size method to determine the size of our file in bytes, and storing that in the size variable.

Finally, we're printing a simple string to the console that tells us the name of the file and its size in bytes. You can replace example.csv with the name of your own CSV file.