计数运算

$ export i=0
$ for F in `wallet_stat_db -N -e “select count(error_code) from t_custom_process_stat where act_date=’2016-01-17′ and app_code=’nuomi’ and process_id=1 and product_id=4 group by error_code; “`; do if [ $F -gt 1 ]; then i=$(($i+$F)); fi; done;
$ echo $i