diff --git a/db/migrate/renumber.sh b/db/migrate/renumber.sh
new file mode 100644
index 0000000..a0aa282
--- /dev/null
+++ b/db/migrate/renumber.sh
@@ -0,0 +1,12 @@
+ls -1 *.rb | (
+  i=1
+  while read IN; do
+    OUT=$(echo $IN | sed -e "s/^[0-9]\+/$(printf '%03d' $i)/")
+    if [ "$IN" != "$OUT" ]; then
+      echo mv $IN $OUT
+    else
+      echo "# $IN stays untouched"
+    fi
+    i=$[$i + 1]
+  done
+)
--
libgit2 0.21.2