Adds print-files-not-in-urls-txt.sh

scripts/shell/print-files-not-in-urls-txt.sh

@@ -0,0 +1,7 @@
+find * -maxdepth 0 -type f -not -name 'urls.txt' -exec sh -c '
+  for file; do
+    if ! grep -q "$file" urls.txt; then
+      echo "$file"
+    fi
+  done
+' sh {} +