diff --git a/bin/wayback_machine_downloader b/bin/wayback_machine_downloader
index 7931250..b778049 100755
--- a/bin/wayback_machine_downloader
+++ b/bin/wayback_machine_downloader
@@ -58,7 +58,7 @@ end.parse!
 if (base_url = ARGV[-1])
   options[:base_url] = base_url
   wayback_machine_downloader = WaybackMachineDownloader.new options
-  if wayback_machine_downloader.list
+  if options[:list]
     wayback_machine_downloader.list_files
   else
     wayback_machine_downloader.download_files
diff --git a/lib/wayback_machine_downloader.rb b/lib/wayback_machine_downloader.rb
index 91376b5..e2c4b11 100644
--- a/lib/wayback_machine_downloader.rb
+++ b/lib/wayback_machine_downloader.rb
@@ -16,17 +16,19 @@ class WaybackMachineDownloader
 
   VERSION = "2.0.0"
 
-  attr_accessor :base_url, :directory, :from_timestamp, :to_timestamp, :only_filter, :exclude_filter, :all, :list, :maximum_pages, :threads_count
+  attr_accessor :base_url, :exact_match, :directory,
+    :from_timestamp, :to_timestamp,
+    :only_filter, :exclude_filter, :all, :maximum_pages, :threads_count
 
   def initialize params
     @base_url = params[:base_url]
+    @exact_match = params[:exact_match]
     @directory = params[:directory]
     @from_timestamp = params[:from_timestamp].to_i
     @to_timestamp = params[:to_timestamp].to_i
     @only_filter = params[:only_filter]
     @exclude_filter = params[:exclude_filter]
     @all = params[:all]
-    @list = params[:list]
     @maximum_pages = params[:maximum_pages] ? params[:maximum_pages].to_i : 100
     @threads_count = params[:threads_count].to_i
   end
@@ -78,18 +80,19 @@ class WaybackMachineDownloader
   end
 
   def get_all_snapshots_to_consider
-    # Note: Passing a page index parameter allow us to get more snapshots, but from a less fresh index
+    # Note: Passing a page index parameter allow us to get more snapshots,
+    # but from a less fresh index
     print "Getting snapshot pages"
     snapshot_list_to_consider = ""
     snapshot_list_to_consider += get_raw_list_from_api(@base_url, nil)
     print "."
-    snapshot_list_to_consider += get_raw_list_from_api(@base_url + '/*', nil)
-    print "."
-    @maximum_pages.times do |page_index|
-      snapshot_list = get_raw_list_from_api(@base_url + '/*', page_index)
-      break if snapshot_list.empty?
-      snapshot_list_to_consider += snapshot_list
-      print "."
+    unless @exact_match
+      @maximum_pages.times do |page_index|
+        snapshot_list = get_raw_list_from_api(@base_url + '/*', page_index)
+        break if snapshot_list.empty?
+        snapshot_list_to_consider += snapshot_list
+        print "."
+      end
     end
     puts " found #{snapshot_list_to_consider.lines.count} snaphots to consider."
     puts
@@ -134,8 +137,11 @@ class WaybackMachineDownloader
   end
 
   def list_files
+    # retrieval produces its own output
+    files = get_file_list_by_timestamp
+    # ... hence delay printing the opening bracket
     puts "["
-    get_file_list_by_timestamp.each do |file|
+    files.each do |file|
       puts file.to_json + ","
     end
     puts "]"
@@ -179,7 +185,7 @@ class WaybackMachineDownloader
 
   def structure_dir_path dir_path
     begin
-      FileUtils::mkdir_p dir_path unless File.exists? dir_path
+      FileUtils::mkdir_p dir_path unless File.exist? dir_path
     rescue Errno::EEXIST => e
       error_to_string = e.to_s
       puts "# #{error_to_string}"
@@ -219,7 +225,7 @@ class WaybackMachineDownloader
     if Gem.win_platform?
       file_path = file_path.gsub(/[:*?&=<>\\|]/) {|s| '%' + s.ord.to_s(16) }
     end
-    unless File.exists? file_path
+    unless File.exist? file_path
       begin
         structure_dir_path dir_path
         open(file_path, "wb") do |file|
@@ -240,7 +246,7 @@ class WaybackMachineDownloader
       rescue StandardError => e
         puts "#{file_url} # #{e}"
       ensure
-        if not @all and File.exists?(file_path) and File.size(file_path) == 0
+        if not @all and File.exist?(file_path) and File.size(file_path) == 0
           File.delete(file_path)
           puts "#{file_path} was empty and was removed."
         end
diff --git a/lib/wayback_machine_downloader/archive_api.rb b/lib/wayback_machine_downloader/archive_api.rb
index d3e82b7..f87c6f6 100644
--- a/lib/wayback_machine_downloader/archive_api.rb
+++ b/lib/wayback_machine_downloader/archive_api.rb
@@ -1,15 +1,15 @@
 module ArchiveAPI
 
-	def get_raw_list_from_api url, page_index
-		request_url = "http://web.archive.org/cdx/search/xd?url="
-		request_url += url
-		request_url += parameters_for_api page_index
+  def get_raw_list_from_api url, page_index
+    request_url = "http://web.archive.org/cdx/search/xd?url="
+    request_url += url
+    request_url += parameters_for_api page_index
 
     open(request_url).read
-	end
+  end
 
-	def parameters_for_api page_index
-		parameters = "&fl=timestamp,original&collapse=digest&gzip=false"
+  def parameters_for_api page_index
+    parameters = "&fl=timestamp,original&collapse=digest&gzip=false"
     if @all
       parameters += ""
     else
diff --git a/lib/wayback_machine_downloader/tidy_bytes.rb b/lib/wayback_machine_downloader/tidy_bytes.rb
index f584103..ba000b4 100644
--- a/lib/wayback_machine_downloader/tidy_bytes.rb
+++ b/lib/wayback_machine_downloader/tidy_bytes.rb
@@ -60,7 +60,7 @@ module TibyBytes
       bytes.each_index do |i|
 
         byte          = bytes[i]
-        is_ascii      = byte < 128
+        _is_ascii     = byte < 128
         is_cont       = byte > 127 && byte < 192
         is_lead       = byte > 191 && byte < 245
         is_unused     = byte > 240
@@ -78,7 +78,7 @@ module TibyBytes
             # the leading byte.
             begin
               (1..(i - last_lead)).each {|j| bytes[i - j] = tidy_byte(bytes[i - j])}
-            rescue NoMethodError => e
+            rescue NoMethodError
               next
             end
             conts_expected = 0
@@ -98,7 +98,7 @@ module TibyBytes
       end
       begin
         bytes.empty? ? nil : bytes.flatten.compact.pack("C*").unpack("U*").pack("U*")
-      rescue ArgumentError => e
+      rescue ArgumentError
         nil
       end
     end
diff --git a/lib/wayback_machine_downloader/to_regex.rb b/lib/wayback_machine_downloader/to_regex.rb
index a059ccf..d9f0a67 100644
--- a/lib/wayback_machine_downloader/to_regex.rb
+++ b/lib/wayback_machine_downloader/to_regex.rb
@@ -25,7 +25,7 @@ module ToRegex
     # @option options [true,false] :lang /foo/[nesu]
     def to_regex(options = {})
       if args = as_regexp(options)
-        ::Regexp.new *args
+        ::Regexp.new(*args)
       end
     end
 
diff --git a/test/test_wayback_machine_downloader.rb b/test/test_wayback_machine_downloader.rb
index cd5b822..bf2bac5 100644
--- a/test/test_wayback_machine_downloader.rb
+++ b/test/test_wayback_machine_downloader.rb
@@ -4,7 +4,8 @@ require 'wayback_machine_downloader'
 class WaybackMachineDownloaderTest < Minitest::Test
 
   def setup
-    @wayback_machine_downloader = WaybackMachineDownloader.new base_url: 'http://www.onlyfreegames.net'
+    @wayback_machine_downloader = WaybackMachineDownloader.new(
+      base_url: 'http://www.onlyfreegames.net')
     $stdout = StringIO.new
   end
 
@@ -38,6 +39,16 @@ class WaybackMachineDownloaderTest < Minitest::Test
     assert_equal file_expected, @wayback_machine_downloader.get_file_list_by_timestamp[-2]
   end
 
+  def test_without_exact_match
+    @wayback_machine_downloader.exact_match = false
+    assert @wayback_machine_downloader.get_file_list_curated.size > 1
+  end
+
+  def test_exact_match
+    @wayback_machine_downloader.exact_match = true
+    assert_equal 1, @wayback_machine_downloader.get_file_list_curated.size
+  end
+
   def test_file_list_only_filter_without_matches
     @wayback_machine_downloader.only_filter = 'abc123'
     assert_equal 0, @wayback_machine_downloader.get_file_list_curated.size
@@ -85,20 +96,22 @@ class WaybackMachineDownloaderTest < Minitest::Test
     assert_nil @wayback_machine_downloader.get_file_list_curated["linux.htm"]
   end
 
-  def test_file_list_exclude_filter_with_a_regex
+  def test_all_get_file_list_curated_size
     @wayback_machine_downloader.all = true
     assert_equal 69, @wayback_machine_downloader.get_file_list_curated.size
   end
  
   # Testing encoding conflicts needs a different base_url
   def test_nonascii_suburls_download
-    @wayback_machine_downloader = WaybackMachineDownloader.new base_url: 'https://en.wikipedia.org/wiki/%C3%84'
+    @wayback_machine_downloader = WaybackMachineDownloader.new(
+      base_url: 'https://en.wikipedia.org/wiki/%C3%84')
     # Once just for the downloading...
     @wayback_machine_downloader.download_files
   end
 
   def test_nonascii_suburls_already_present
-    @wayback_machine_downloader = WaybackMachineDownloader.new base_url: 'https://en.wikipedia.org/wiki/%C3%84'
+    @wayback_machine_downloader = WaybackMachineDownloader.new(
+      base_url: 'https://en.wikipedia.org/wiki/%C3%84')
     # ... twice to test the "is already present" case
     @wayback_machine_downloader.download_files
     @wayback_machine_downloader.download_files