a s.txt file is in the current directory; write a ruby function that reads this file and prints its contents to screen. in ruby

You can use the following Ruby function to read the contents of a file and print them to the screen:

main.rb
def read_file(file_path)
  # Check if the file exists
  if File.exists?(file_path)
    # Open the file in read mode
    file = File.open(file_path, "r")

    # Read the contents of the file
    contents = file.read

    # Print the contents to the screen
    puts contents

    # Close the file
    file.close
  else
    puts "File does not exist."
  end
end
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To use the function, you can call it with the file path as an argument, like this:

main.rb
read_file("s.txt")
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Make sure that the file "s.txt" exists in the current directory. The function will read the content of the file and print it to the screen.

Note: Remember to handle exceptions and errors, such as file not found errors, to ensure your code is robust.