diff --git a/Aliases/dupeseek b/Aliases/dupeseek
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+++ b/Aliases/dupeseek
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+../Formula/dupseek.rb
\ No newline at end of file
diff --git a/Formula/dupseek.rb b/Formula/dupseek.rb
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+++ b/Formula/dupseek.rb
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+class Dupseek < Formula
+  desc "interactive program to find and remove duplicate files."
+  homepage "http://www.beautylabs.net/software/dupseek.html"
+  url "http://www.beautylabs.net/software/dupseek-1.3.tgz"
+  sha256 "c046118160e4757c2f8377af17df2202d6b9f2001416bfaeb9cd29a19f075d93"
+
+  def install
+    bin.install "dupseek"
+    doc.install %w[changelog.txt doc.txt copyright credits.txt]
+  end
+
+  test do
+    mkdir "folder"
+    touch "folder/file1"
+    assert_equal "", shell_output("#{bin}/dupseek -b report -f de folder").chomp
+    touch "folder/file2"
+    assert_equal "folder\\/file2", shell_output("#{bin}/dupseek -b report -f de folder").chomp
+    assert_equal "folder\\/file1\nfolder\\/file2", shell_output("#{bin}/dupseek -b report -f e folder").chomp
+  end
+end