title: How to provide flags to ruby script like -v , -o and place code accordingly?
body: <p>I have created one ruby script that I want to run with some flags on console say -v flag prints output on console and -o stores output in new file with file name I am taking from console using <code>gets()</code></p>
  
  <p>My code has following structure:</p>
  
  <pre><code>puts "Enter filename to analyze:\n\n"
  filename = gets().chomp
  puts "Provide filename to store result in new text file:\n\n"
  output = gets().chomp
  filesize = File.size(filename)
  puts "File size in Bytes:\n#{filesize.to_i}\n"
  pagecontent = filesize - 20
  puts "\n\nData:\n#{pagecontent}\n\n"
  File.open(filename,'r') do |file|
           #whole process with few do..end in between that I want to do in 2 different #ways.
      #If I provide -v flag on console result of this code should be displayed on console
      #and with -o flag it should be stored in file with filename provided on console #stored in output variable declared above
  end
  end
  </code></pre>