diff --git a/dedupe b/dedupe
new file mode 100755
index 0000000..4ecafa0
--- /dev/null
+++ b/dedupe
@@ -0,0 +1,16 @@
+#!/bin/sh
+depth="-maxdepth 1"
+case "$1" in
+  -r|--recursive) depth="" ;;
+  -h|--help)
+    echo "Usage: $(basename "$0") [-r]"
+    echo "  -r, --recursive   search subdirectories too"
+    exit 0
+    ;;
+esac
+
+find . $depth -type f -exec md5sum {} + | sort | awk '{
+  if ($1 == prev) print "rm " $2
+  prev = $1
+}'
+