SYNOPSIS
basex [-bcdiIoqrRstuvVwxXz] [input]
DESCRIPTION
basex is a fast and powerful, yet light-weight and platform independent XML database system and XPath/XQuery processor.OPTIONS
A short description of option can be obtained from
$ basex -hor by browsing http://docs.basex.org/wiki/Command-Line_Options#Standalone
DATABASE COMMANDS
A list of supported Database commands can be obtained from
$ basex -c helpor by browsing http://docs.basex.org/wiki/Commands
EXAMPLES
- XQuery evaluation (no database, no interaction, script mode):
$ basex 19+23 42 $ basex -q "<answer>{ 23+19 }</answer>" <answer>42</answer>
- Import an XML file into database, output its content (query its root) and be verbose:
$ basex -Vc "CREATE DB input /usr/share/doc/basex/examples/input.xml; XQUERY /" Database 'input' created in 136.84 ms. <html> <!-- Header --> <head id="0"> <title>XML</title> </head> <!-- Body --> <body id="1" bgcolor="#FFFFFF" text="#000000" link="#0000CC"> <h1>Databases & XML</h1> <div align="right"> <b>Assignments</b> <ul> <li>Exercise 1</li> <li>Exercise 2</li> </ul> </div> </body> <?pi bogus?> </html> Query: / Compiling: Result: root() Parsing: 5.08 ms Compiling: 27.2 ms Evaluating: 0.87 ms Printing: 13.7 ms Total Time: 46.86 ms Hit(s): 1 Item Updated: 0 Items Printed: 358 Bytes Query executed in 42.52 ms.
- XPath evaluation (with existing database):
$ basex -c "OPEN input; XQUERY //li[1]" <li>Exercise 1</li>
- Retrieve XML from the web and perform XPath query:
$ basex -q "doc('http://files.basex.org/examples/input.xml')//li" <li>Exercise 1</li> <li>Exercise 2</li>
- W3C XQuery Full-Text (make use of full-text index and perform fuzzy query with a typing error):
$ basex BaseX 7.1 [Standalone] Try "help" to get more information. > SET FTINDEX on Full-Text Index: ON > CREATE DB input /usr/share/doc/basex/examples/input.xml Database 'input' created in 94.42 ms. > XQUERY //b[text() contains text 'Asisgnment' using fuzzy] <b>Assignments</b> Query executed in 8.37 ms.
- Update the database and show result:
> XQUERY delete node //ul Query executed in 2.79 ms. > XQUERY replace value of node //b with 'Debian rules' Query executed in 2.94 ms. > XQUERY //div <div align="right"> <b>Debian rules</b> </div> Query executed in 1.01 ms.
- Open an input xml file, execute a query and write result into file:
$ basex -i /usr/share/doc/basex/examples/input.xml -q //div -o out.xml $ cat out.xml <div align="right"> <b>Assignments</b> <ul> <li>Exercise 1</li> <li>Exercise 2</li> </ul> </div>
- Query an already existing database called 'input'. If a file named 'input' exists in current working directory it takes precedence:
$ basex -i input -q //div <div align="right"> <b>Assignments</b> <ul> <li>Exercise 1</li> <li>Exercise 2</li> </ul> </div>
- Let basex process query input from standard in:
$ echo '19+23' | basex -q- 42
- Execute commands from script file:
$ cat commands.txt create db debian <debian_db/> xquery / list $ basex -C commands.txt | grep debian <debian_db/> debian 1 4639 debian.xml
- Parse non well-formed HTML (needs libtagsoup-java installed):
$ cat bad.html <html> <ul> <li>A <li>B </ul> </html> $ basex -c 'set parser html; set htmlopt method=html,nons=true; create db htmldb bad.html' $ basex -q "doc('htmldb')" <html> <body> <ul> <li>A</li> <li>B</li> </ul> </body> </html> Alternative: $ basex -q 'declare option db:parser "html"; doc("bad.html")' <html xmlns="http://www.w3.org/1999/xhtml"> <body> <ul> <li>A</li> <li>B</li> </ul> </body> </html> For further documentation on how to configure the HTML Parser refer to http://docs.basex.org/wiki/Parsers#HTML_Parser
HISTORY
BaseX started as a research project of the Database and Information Systems Group (DBIS) at the University of Konstanz in 2005 and soon turned into a feature-rich open source XML database and XPath/XQuery processor.LICENSE
New (3-clause) BSD LicenseAUTHOR
BaseX is developed by a bunch of people called 'The BaseX Team' <http://basex.org/about-us/> led by Christian Gruen <[email protected]>.The man page was written by Alexander Holupirek <[email protected]> while packaging BaseX for Debian GNU/Linux.