Linux remove code previous number

we use the sed to replace the number is code
the first character can be space one number, the two number may a number

sed 's/^[ 0-9]*[0-9]//g' code.java





Reference
Sed RE pattern

Jquery can't change image refresh in Firefox and IE

1. Problem:
 Some times we try dynamic to change a picture in html,
and we assume this image is same,
in firefox and IE, this doesn't work,
and we happen is in captcha image.


2. Solution
This is because the firefox and ie seem the picture name is same, so they didn't send the request.  solution is add a random number in the request.
// HTML
<a href="" id="captcha_img_link"  title="Change img">chane</a>
<img id="captcha_img" align="middle" src="jcaptcha.jpg"  />


// Javascript
$(function (){
    // change image
    $('#captcha_img_link').click(function () {
        // Avoid the cache using appach random
        $("#captcha_img").attr('src',"./jcaptcha.jpg?random=" + Math.floor((Math.random()*20)+1));               
        return false;
    });
});




Reference:
How to force a web browser NOT to cache images

java eclipse JDK update JDK7_25 in linux

h3. Download SE for 64 bit for [oracle|http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html]

h3. Copy to directory and link
{code}
mv /home/Andy/IBMS/lib/jdk/jdk7_25/jdk1.7.0_25 /usr/java
unlink latest
unlink default
ln -s /usr/java/jdk1.7.0_25 latest
ln -s /usr/java/latest default
{code}


h3. Setup the run position
{code}
update-alternatives --install "/usr/bin/java" "javac" "/usr/java//jdk1.7.0_25/bin/javac" 1
update-alternatives --install "/usr/bin/javac" "javac" "/usr/java//jdk1.7.0_25/bin/javac" 1
update-alternatives --install "/usr/bin/javaws" "javaws" "/usr/java//jdk1.7.0_25/bin/javaws" 1

[root@localhost java]# update-alternatives --config java

有 3 程式提供 'java'。

  選擇        指令
-----------------------------------------------
   1           /usr/lib/jvm/jre-1.5.0-gcj/bin/java
*+ 2           /usr/lib/jvm/jre-1.6.0-openjdk.x86_64/bin/java
   3           /usr/java//jdk1.7.0_25/bin/java

請輸入以保留目前的選擇[+]，或輸入選擇號碼：3
[root@localhost java]# update-alternatives --config javac
[root@localhost java]# update-alternatives --config javaws
{code}

h3. Setting Eclipse used JDK7

Choose Window->Preference, then click following content



h3. Setting project replace jdk6 to jdk7

your_Project (click mouse right button)-> properties \-> java build path \-> edit

Reference:
[How do I install Oracle Java JDK 7?|http://askubuntu.com/questions/55848/how-do-i-install-oracle-java-jdk-7]
[Eclipse update|http://stackoverflow.com/questions/12588537/how-to-change-jdk-version-for-an-eclipse-project]


Reference:
[How do I install Oracle Java JDK 7?|http://askubuntu.com/questions/55848/how-do-i-install-oracle-java-jdk-7]

PSQL string concate

1. Solution:
A. Using || symbol
select account||lastname from user where account = 'andy';







B. write the function
create or replace function concate(text,text) RETURNS text AS $$ SELECT $1 || '' ||$2; $$ LANGUAGE 'sql';
select concate(account,lastname) from user where account = 'andy';




Reference:
a-better-concat-for-postgresql
How to concatenate strings of a string field in a PostgreSQL
wiki Postsql

Struts2 Version 2.3.15 HelloWorld Setting

1. Problem:
There are some different after struts2 2.1.3, e.g. the library and the strtus.xml, web.xml setting file


2. Solution:
A. Downlaod form struts-2.3.15.1-lib.zip

B. Use the following Basic library, and copy to WebContent/WEB-INF/lib:
asm-3.3.jar
asm-commons-3.3.jar
asm-tree-3.3.jar
commons-fileupload-1.3.jar
commons-io-2.0.1.jar
commons-lang-2.4.jar
commons-lang3-3.1.jar
commons-logging-1.1.3.jar
freemarker-2.3.19.jar
javassist-3.11.0.GA.jar
ognl-3.0.6.jar
struts2-core-2.3.15.1.jar
xwork-core-2.3.15.1.jar

C. Writing the web.xml, there we use the StrutsPrepareAndExecuteFilter

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    version="2.5">
   
  <filter>
    <filter-name>struts2</filter-name>
    <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>struts2</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

D. Writing the struts.xml in Project_dir/Java Resource/src and write your action class
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>
<constant name="struts.devMode" value="true" />
    <package name="default" extends="struts-default"> 
        <action name="hello" class="ibms.struts2.HelloWorldAction" method="execute">
            <result name="success">/HelloWorld.jsp</result>
        </action>
       
    </package>
</struts>


3. Reference
Difference between Struts 2 FilterDispatcher and StrutsPrepareAndExecuteFilter ?
struts2-hello-world-jsp-example-error

Linux ftp folder donwload

Solution:

wget -r ftp://user:pass@server.com/

Reference:  How do you recursively ftp a folder in linux

homozygous and heterozygos

An "allele" does not have zygosity...so it cannot be either hetero- or homozygous. An allele is defined as one of potentially many possibilities at a given location in a genome (a "locus").

A "locus" can be heterozygous or homozygous (among other things), meaning it either has two different alleles, or exactly the same two alleles.

Common SNP terminology is somewhat confusing...based on the acronym one would expect it to refer to a given allele at a specific position, and sometimes it does. However, "SNP" is more often used to refer to a specific base (the "locus") that has multiple possible alleles (for example, a A or a G).

So a heterozygous indel would be one copy of the specific lesion (an insertion or a deletion), the other strand lacking that particular insertion or deletion.

Hopefully that helps, if I didn't understand your question, let me know.


Reference:
http://seqanswers.com/forums/showthread.php?t=1175

Look other: Frequency of homozygous indels vs heterozygous indels