find the size of a file in ruby

To find the size of a file in Ruby, you can use the size method provided by the File class. The size method returns the size of the file in bytes. Here's an example:

main.rb
file_size = File.size("path/to/your/file")
puts "File size is #{file_size} bytes"
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In the above example, path/to/your/file is the path to the file you want to find the size of. The File.size method returns the size of the file in bytes, which is then assigned to the file_size variable. Finally, the size of the file is printed to the console using puts.

Alternatively, you can use the IO class to open the file and then use the size method. Here's an example:

main.rb
file = File.open("path/to/your/file")
file_size = file.size
file.close

puts "File size is #{file_size} bytes"
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In the above example, File.open is used to open the file and create an instance of IO. The size method is then called on this instance to determine the size of the file. Finally, the file is closed and the size is printed to the console.