1. background in most cases, we want to execute sql script in doris routinely. using azkaban, to load data,etc.And we want to pass parameters to the sql script file. we can easily handle such situation in hive. 1.1 hive usage: using -hiveconf: or…
参考: http://www.siongboon.com/projects/2013-07-08_raspberry_pi/index.html Raspberry Pi Get started with Raspberry Pi (RPi), a step by step approach to get your Raspberry Pi with low level electronics hardware control. Make simple, step by step…
Windows Method 1: Using the Command Prompt 1 Click on the Start button. 2 Type cmd in the search bar, right above the Start button, and press Enter. This will open the command prompt. If you're using Windows XP, click Run, type cmd, and press Enter…
Linux shell/terminal 命令非常强大,即使一个简单的命令就可能导致文件夹.文件或者路径文件夹等被删除.在一些情况下,Linux 甚至不会询问你而直接执行命令,导致你丢失各种数据信息.一般来说在 Web 上推荐新的 Linux 用户执行这些命令,当然,也有人哪些写过这代码的人不这么想,因为这玩意你一写下去就不是玩笑了.这里我收集了一些对系统有危害的 Linux 代码,帮助你避免他们.请记住:这些代码非常危险,甚至可以经过修改,变得更加有危害性.还有一些事情需要注意:一些命令只…
This is a great tutorial about tmux quick start: http://www.youtube.com/watch?v=wKEGA8oEWXw&noredirect=1 and its text script , just read it :) http://timestream.net/screencasts/tmux-script.txt Here's the very nice functionailities. 1)install tmux 2)t…