diff --git a/admin/git-mrproper.sh b/admin/git-mrproper.sh
new file mode 100755
index 000000000..46184161a
--- /dev/null
+++ b/admin/git-mrproper.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+if test "$1" = "yes"; then
+	git ls-files -o | xargs rm -f
+else
+	(
+		echo "'git-mrproper.sh yes'"
+		echo "would delete following files:"
+		echo
+		git ls-files -o | while read file; do echo " $file"; done 
+	) | less
+fi