1. hive模糊搜索表 show tables like '*name*';

2. 查看表结构信息 desc formatted tablename; desc table_name;

3. 查看分区信息 show partitions tablename;

4. 根据分区查询数据 select table_coulm from tablename where partitionname = '2016-02-25';

查找文件

locate

作用相当于find -name，但是locate速度会比find快很多，因为locate命令也是用数据库查找的。

locale -a

显示支持的语言

vi /etc/default/locale

编辑使用的语言

如果你想在当前目录下 查找"hello,world!"字符串,可以这样:

1. 先升级：

sudo apt-get update

2. 然后添加PPA：

sudo add-apt-repository ppa:ondrej/php

FFmpeg has been removed from Ubuntu 14.04 and was replaced by Libav. This decision has been reversed so that FFmpeg is available now in Ubuntu 15.04 again, but there is still no official package for 14.04. In this tutorial, I will show you how to install FFmpeg from mc3man ppa. Add the mc3man ppa:

按照目录大小排序，以M为单位，不显示子目录

du -h --block-size=m --max-depth=1 |sort -n