websocketd

Like inetd, but for WebSockets. Turn any application that uses STDIN/STDOUT into a WebSocket server.

https://github.com/joewalnes/websocketd/wiki

可寫個bash就能把這個bash轉到Websocket上，用Websocket的send()就可以傳給這個bash的STDIN，STDOUT就會傳到Websocket的onmessage(event)裡。

執行時可下參數 --devconsole就會有個console在web上，方便debug

參數--staticdir=web可將web裡的html檔或其他靜態檔讓client存取，不用另外開web server

連接websocket時，可用new WebSocket('ws://' + location.host + '/');

Clojure

http://en.wikipedia.org/wiki/Clojure
Lisp的變體，可以在JVM、CLR、Javascript engine上面執行。像Lisp一樣，它是code as data(Homoiconicity)，還有個複雜的巨集系統。
http://www.clojure-toolbox.com/
a Clojure Language Crash Course

特點應該是Concurrent programming和Multithread

Install wxPython on CentOS

http://pkgs.org/centos-6/epel-x86_64/wxPython-2.8.12.0-1.el6.x86_64.rpm.html

Install Howto

1. Download the latest epel-release rpm from

   http://dl.fedoraproject.org/pub/epel/6/x86_64/

2. Install epel-release rpm:

   # rpm -Uvh epel-release*rpm

3. Install wxPython rpm package:

   # yum install wxPython

Python proxy設定

必需設定環境變數http_proxy和https_proxy
% export http_proxy=http://your.proxy.server:port
% export https_proxy=http://your.proxy.server:port

Robot Framework

http://robotframework.org/
A keyword base test automation framework.

Setup on Windows:
1. Install Python 2.7
http://www.python.org/getit/

2. Install wxPython 2.8.12.1 (for RIDE)
http://sourceforge.net/projects/wxpython/files/wxPython/

3. Install robot framework (may use pip or easy_setup)
https://pypi.python.org/pypi/robotframework

4. Install RIDE
https://pypi.python.org/pypi/robotframework-ride
https://github.com/robotframework/RIDE/wiki/Installation-Instructions

5. Add PATH C:\Python27\Scripts

How to PAUSE and CONTINUE a Linux process

Use kill command to send -STOP signal to pause a process and -CONT signal to continue it.

Example on CentOS6 Desktop:
1. Open a Terminal (name as T1) on Desktop and send "ps -aux | grep bash" to see how much bash in there.

2. Open another Terminal (name as T2) on Desktop and on T1 send "ps -aux | grep bash" to see process id of new created bash (T2)

3. On T1, send "kill -STOP " to pause T2
>T2 is hang

4. On T1, send "kill -CONT " to continue T2
>T2 is back to work
This is useful if a script is running on T2 and you want to pause it and continue it later

Reference:
http://tombuntu.com/index.php/2007/11/23/how-to-pause-a-linux-process/

安裝Windows出現unable to create a new system partition

開機時移除USB，若需要Load Driver，等到跳出Load Driver畫面時在把USB stick插進去。

http://social.technet.microsoft.com/Forums/windows/en-US/9e18e169-f77e-4026-b22f-f602e670d55c/install-failure-unable-to-create-a-new-system-partition?forum=w7itproinstall