Magento reset sales tables

RESET_SALES_SQL_FILE=reset_sales_tables_$(date +%s).sql && \
(
    mysqldump --add-drop-table --no-data -K -uroot -p***** DBNAME \
         `echo $(mysql -uroot -p***** DBNAME -e "SHOW TABLES LIKE 'sales_flat%';" | tail -n+2)` \
         `echo $(mysql -uroot -p***** DBNAME -e "SHOW TABLES LIKE 'sales%aggregated%';" | tail -n+2)` \
         | sed 's/ AUTO_INCREMENT=[0-9]*\b//' && \
    echo "UPDATE \`eav_entity_store\` SET \`increment_last_id\` = '100000000'" \
        "WHERE \`entity_type_id\` IN(SELECT \`entity_type_id\` FROM \`eav_entity_type\` WHERE \`entity_model\` LIKE 'sales/%');"
) > $RESET_SALES_SQL_FILE && \
mysql -uroot -p***** DBNAME < $RESET_SALES_SQL_FILE && \
rm $RESET_SALES_SQL_FILE