摘要:
```sh # 分组排序 awk '{print substr($1,1,16),$2}'| awk '{ group[$1][$2] = 1; } END{ for (key1 in group){ count=0; for (key2 in group[key1]){ count++ } pri 阅读全文
摘要:
```sql -- 查看多个参数 SHOW VARIABLES where Variable_name in('max_connections','version','slow_query_log','log_output'); -- 查看多个状态 show global status where 阅读全文