1 files changed, 6 insertions, 1 deletions
diff --git a/duplicates b/duplicates
index 82e72bd..8be99f9 100755
--- a/duplicates
+++ b/duplicates
@@ -3,9 +3,14 @@
 dir = ARGV[0]
 a = `find #{dir} -type f`.split "\n"
 
+md5 = "md5sum"
+if `uname` == "Darwin"
+  md5 = "md5"
+end
+
 h = {}
 a.each { |fn|
-  md5 = `md5sum "#{fn}" | cut -d " " -f1`
+  md5 = `#{md5} "#{fn}" | cut -d " " -f1`
   if h.has_key? md5
     h[md5] << fn
   else