It will find all the log files from the specified folder recursively and also their size, and asks the user whether to delete it or not.

remove_log_files.rb

require 'find'

def format_mb(size)
  conv = [ 'b', 'kb', 'mb', 'gb', 'tb', 'pb', 'eb' ];
  scale = 1024;

  ndx = 1
  if( size < 2*(scale**ndx)  )
    return "#{(size)} #{conv[ndx-1]}"
  end
  size = size.to_f
  [2,3,4,5,6,7].each do |ndx|
    if ( size < 2*(scale**ndx)  )
      return "#{'%.3f' % (size/(scale**(ndx-1)))} #{conv[ndx-1]}"
    end
  end
  ndx = 7
  return "#{'%.3f' % (size/(scale**(ndx-1)))} #{conv[ndx-1]}"
end

dir_path = "/Users/sagarbommidi/workspace"

Find.find(dir_path).each do |file|
  if FileTest.file?(file) && File.extname(file) == '.log'
    fsize = FileTest.size(file)
    puts "#{file} ==> #{format_mb(fsize)} "
    puts "You Want to delete file?"
    decision = gets.chomp
    if ["yes", 'y'].include? decision 
      puts "Deleting the file"
      File.delete(file)
    end
  end
end