service "${app}" stop
-su postgres -lc "pg_dump -d ${db_name} --format=custom -f ${app}_backup/${db_name}.pgdump"
+su postgres -lc "pg_dump -d ${db_name} --format=custom -f /tmp/${app}_backup/${db_name}.pgdump"
for target in "$@"; do
cp -a "${target}" "${app}_backup${target}"
done