Bulk rename files inside given directory path. Basically remove certain strings/text from the file name that we don't want in those file name and are common in all the files.

bulk-file-rename.rb

# Your directory path where all files are there which you want to rename
# without trailing / (slash)
dir_path = "your/dir/path/goes/here"

Dir.glob("#{dir_path}/*").each do |file|
  # squeeze all whitespaces into single whitespaces
  new_file_name = file.squeeze(' ')
  base_name = File.basename(new_file_name)
  
  if base_name.include?('Xamarin.Android Tutorial - ')
    rename_to = new_file_name.gsub('Xamarin.Android Tutorial - ', '')
  elsif base_name.include?('Xamarin Android Tutorial ')
    rename_to = new_file_name.gsub('Xamarin Android Tutorial ', '')
  elsif base_name.include?('Xamarin Android ')
    rename_to = new_file_name.gsub('Xamarin Android ', '')
  else
    rename_to = new_file_name
  end

  File.rename(file, rename_to)

  puts "Renamed from: #{file} \n to: #{rename_to}"
end