diff --git a/contrib/show-old.sh b/contrib/show-old.sh
new file mode 100644
index 0000000..f2f7708
--- /dev/null
+++ b/contrib/show-old.sh
@@ -0,0 +1,27 @@
+#!/bin/bash
+
+# list dirs with old *.metadata files (older than $1 days)
+
+main() {
+    local days=${1:-5} old
+    echo "searching old ($days days) projects ..."
+
+    old=$(date +%s -d "$days days ago")
+
+    local f1 d1
+    local -A skip ok
+    while IFS= read -r f1; do # old *.metadata
+        d1=${f1%/*}
+        [[ ${skip[$d1]} || ${ok[$d1]} ]] && continue
+        if [[ $(find "$d1" -maxdepth 1 -type f -name '*.metadata' -newermt "@$old" -print -quit) ]]; then
+            # found new *.metadata
+            skip[$d1]=1
+            continue
+        fi
+        # report old only once
+        echo "$d1"
+        ok[$d1]=1
+    done < <(find . -mindepth 2 -maxdepth 2 -type f -name '*.metadata' ! -newermt "@$old")
+}
+
+main "$@"