First I install the following packages(using apt-get install xxx):

1. xsltproc (the XSL Transformations Processor)
2. docbook-xsl (stylesheets for HTML, XHTML, HTML Help and others)
3. docbook-defguide (The Definitive Guide to DocBook - recommended)

then the file test.xml and the following command

xsltproc -o test.html /usr/share/xml/docbook/stylesheet/nwalsh/xhtml/docbook.xsl test.xml

this command might be more useful

xsltproc -o ~/Desktop/output.html /usr/share/xml/docbook/stylesheet/nwalsh/xhtml/docbook.xsl $1

now I want to use fop to generate PDF file, but fop is java-based, so I need to install java first

$apt-get install sun-java6-bin

well, fop is not working!

LINKS

http://www.oasis-open.org/docbook/documentation/reference/

http://www.docbook.org/tdg/en/html/docbook.html

https://help.ubuntu.com/community/DocBook

now I know how to include other file by using "Xinclude"

http://www.sagehill.net/docbookxsl/ModularDoc.html#UsingXinclude

examples

<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://docbook.org/xml/4.2/docbookx.dtd"> <article> <artheader> <author><firstname>Norman</firstname><surname>Walsh</surname></author> <authorinitials>ndw</authorinitials> <artpagenums>339-343</artpagenums> <volumenum>15</volumenum> <issuenum>3</issuenum> <publisher><publishername>The TeX User's Group</publishername></publisher> <pubdate>1994</pubdate> <title>A World Wide Web Interface to CTAN</title> <titleabbrev>CTAN-Web</titleabbrev> <revhistory> <revision> <revnumber>1.0</revnumber> <date>28 Mar 1994</date> <revremark>Submitted.</revremark> </revision> <revision> <revnumber>0.5</revnumber> <date>15 Feb 1994</date> <revremark>First draft for review.</revremark> </revision> </revhistory> </artheader>

<sect1> <title>Chp 1 who is peter</title> <para> first para ————dddddddddddd ddddddddddddddddddddddddddddddd ddddddddddddddddddddddddddddddddddddd ddddddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddHello world </para> <para> first para —Hello worlddddddddddddddddffffrfgfggggggggggg gggggggggggggggggggggggggggggggg ggggggggggggggggggggggggggg ggggggggggggggggggggggg ggggggggggggggggggggggg gggggggggggggg gggggggggggbbbb bbbbbbbbbbbbbbbbbbbb bbbbbbbbbbbbbbbbbb bbbbbbbbbbbbbb bbbfffffffffffff ffffffffffffffffffffffffffffffff9i

ffffbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbffffffffffffffffffffffffffffffffbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbfffffffffffffffffff

</para> <para> first para —Hello world 1111111111111111111111111111111111 22222222222222222222222222222 333333333333333333333333 44444444444444444444444 5555555555555555555555555555 66666666666666666666666 44444444444444444444444444444 </para> <para> first para —Hello world </para> <para> first para —Hello world </para> <para> first para —Hello world </para> <para> first para —Hello world </para> <para> first para —Hello world </para> <para> first para —Hello world </para>

</sect1> <sect1> <title>Chp2 what is he doing</title> <para> first para —Hello worlddddddddddddddddffffrfgfggggggggggg gggggggggggggggggggggggggggggggg ggggggggggggggggggggggggggg ggggggggggggggggggggggg ggggggggggggggggggggggg gggggggggggggg gggggggggggbbbb bbbbbbbbbbbbbbbbbbbb bbbbbbbbbbbbbbbbbb bbbbbbbbbbbbbb bbbfffffffffffff is peter

first para ————dddddddddddd ddddddddddddddddddddddddddddddd ddddddddddddddddddddddddddddddddddddd ddddddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddHello world

first para —ho is peter

first para ————dddddddddddd ddddddddddddddddddddddddddddddd ddddddddddddddddddddddddddddddddddddd ddddddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddHello world

first para —ho is peter

first para ————dddddddddddd ddddddddddddddddddddddddddddddd ddddddddddddddddddddddddddddddddddddd ddddddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddHello world

first para —ho is peter

first para ————dddddddddddd ddddddddddddddddddddddddddddddd ddddddddddddddddddddddddddddddddddddd ddddddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddHello world

first para —ho is peter

first para ————dddddddddddd ddddddddddddddddddddddddddddddd ddddddddddddddddddddddddddddddddddddd ddddddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddHello world

first para — ffffffffffffffffffffffffffffffff9i

Hello peter </para> </sect1> <sect1> <title>Chp 1 who is peter</title> <para> first para ————dddddddddddd ddddddddddddddddddddddddddddddd ddddddddddddddddddddddddddddddddddddd ddddddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddHello world first para ————dddddddddddd ddddddddddddddddddddddddddddddd ddddddddddddddddddddddddddddddddddddd ddddddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddHello world first para ————dddddddddddd ddddddddddddddddddddddddddddddd ddddddddddddddddddddddddddddddddddddd ddddddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddHello world first para ————dddddddddddd ddddddddddddddddddddddddddddddd ddddddddddddddddddddddddddddddddddddd ddddddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddddddd dddddddddddddddddddddddddddddddddddddddHello world Hello peter </para> </sect1>

</article> <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://docbook.org/xml/4.2/docbookx.dtd"> <book> <title>PETER BOOK</title> <titleabbrev>Example</titleabbrev> <bookinfo> <legalnotice><para>No notice is required.</para></legalnotice> <author><firstname>Peter</firstname><surname>King</surname></author> </bookinfo> <dedication> <para> This book is dedicated to you. </para> </dedication> <preface><title>Forword</title> <para> I want to start this by recalling the ... <graphic fileref="figures/fermat.png"/> <imagedata fileref="figures/fermat.png" width="6in" depth="5.5in" scalefit="0"/> </para> </preface>

<title>Introduction</title> <para> This chapter will teach you <itemizedlist> <listitem> <para> How to disassemble an automobile. </para> </listitem> <listitem> <para> How to properly carry the component pieces. </para> </listitem> <listitem> <para> How to reassemble an automobile in a standard telephone booth. </para> </listitem> </itemizedlist> </para>

<para> At least one chapter, reference, part, or article is required in a book. </para> </chapter> <chapter> <title>The tour</title> <para> the first para </para>

<sect1> <title>First Section</title> <para> this is the content of first section </para>

	This is a example
	

</sect1> <sect1> <title>Second Section</title> <para> this is the content of first section </para>

        This is a example
        

</sect1>

</book>