Name
xmllint — command line XML tool
Synopsis
xmllint  [[--version] |  [--debug] |  [--shell] |  [--debugent] |  [--copy] |  [--recover] |  [--noent] |  [--noout] |  [--htmlout] |  [--nowrap] |  [--valid] |  [--postvalid] |  [--dtdvalid URL] |  [--timing] |  [--repeat] |  [--insert] |  [--compress] |  [--html] |  [--push] |  [--memory] |  [--nowarning] |  [--noblanks] |  [--format] |  [--testIO] |  [--encode encoding] |  [--catalogs] |  [--nocatalogs] |  [--auto] |  [--xinclude] |  [--loaddtd] |  [--dtdattr] |  [--dropdtd] |  [--stream] |  [--chkregister] |  [--relaxng] |  [--schema] |  [--nonet]] [xmlfile]
Introduction
      The xmllint program parses one or more XML files, specified on the
      command line as xmlfile. It prints various
      types of output, depending upon the options selected. It is useful for
      detecting errors both in XML code and in the
      XML parser itself.
    
      It is included in libxml2.
    
Options
- --version
- 
	    Display the version of
	    libxml2 used.
	  
- --debug
- 
	    Parse a file and output an annotated tree of the
	    in-memory version of the document.
	  
- --shell
- 
	    Run a navigating shell. Details on available commands in shell mode
	    are below.
	  
- --debugent
- 
	    Debug the entities defined in the document.
	  
- --copy 
- 
	    Test the internal copy implementation.
	  
- --recover
- 
	    Output any parsable portions of an invalid
	    document.
	  
- --noent
- 
	    Substitute entity values for entity
	    references. By default, xmllint leaves entity
	    references in place.
	  
- --noout
- 
	    Suppress output. By default,
	    xmllint outputs the result tree.
	  
- --htmlout
- 
	    Output results as an HTML
	    file. This causes xmllint to output
	    the necessary HTML tags surrounding the result tree
	    output so the results can be displayed in a browser. 
	  
- --nowrap 
- 
	    Do not output HTML doc wrapper.
	  
- --valid 
- 
	    Determine if the document is a valid instance
	    of the included Document Type Definition (DTD). A
	    DTD to be validated against also can be specified at
	    the command line using the --dtdvalid option. By default,
	    xmllint also checks to determine if the
	    document is well-formed.
	  
- --postvalid
- 
	    Validate after parsing is completed.
	  
-  --dtdvalid URL
- 
	    Use the
      DTD specified by URL for
      validation.
	  
- --timing
- 
	    Output information about the time it takes
	    xmllint to perform the various steps.
	  
- --repeat
- 
	    Repeat 100 times, for timing or profiling.
	  
- --insert
- 
	    Test for valid insertions.
	  
- --compress
- 
	    Turn on gzip compression of output.
	  
- --html
- 
	    Use the HTML parser.
	  
- --push
- 
	    Use the push mode of the parser.
	  
- --memory
- 
	   Parse from memory.
	  
- --nowarning
- 
	   Do not emit warnings from the parser and/or validator.
	  
- --noblanks
- 
	   Drop ignorable blank spaces.
	  
- --format
- 
	   Reformat and reindent the output. The $XMLLINT_INDENT
	   environment variable controls the indentation (default 
	   value is two spaces "  ").
	  
- --testIO
- 
	   Test user input/output support.
	  
- --encode encoding
- 
	   Output in the given encoding.
	  
- --catalogs
- 
	   Use the catalogs from $SGML_CATALOG_FILES. Otherwise /etc/xml/catalog
	   is used by default.
	  
- --nocatalogs
- 
	   Do not use any catalogs.
	  
- --auto
- 
	   Generate a small document for testing purposes.
	  
- --xinclude
- 
	   Do XInclude processing.
	  
- --loaddtd
- 
	   Fetch external DTD.
	  
- --dtdattr
- 
	   Fetch external DTD and populate the tree with inherited attributes.
	  
- --dropdtd
- 
	    Remove DTD from output.
	  
- --stream
- Use streaming API - useful when  used  in combination with
              --relaxng or --valid options for validation of files that are
	    too large to be held in memory.
- --chkregister
- Turn on node registration. Useful for developeres testing
	  libxml2 node tracking code.
- --relaxng schema
- Use RelaxNG file named schema for
	  validation.
- --schema schema
- Use a W3C XML Schema file named schema for validation.
- 
      --nonet
- Do not use the Internet to fetch DTD's or entities.
Shell
      xmllint offers an interactive shell mode
      invoked with the --shell command. Available commands in
      shell mode include:
    
- base
- 
	    display XML base of the node
	  
- bye
- 
	    leave shell
	  
- cat node
- 
	    Display node if given or current node.
	  
- cd path
- 
	    Change the current node to path (if given
	    and unique) or root if no argument given.
	  
- dir path
- 
	    Dumps information about the node (namespace, attributes, content).
	  
- du path
- 
	    Show the structure of the subtree under path or the current node.
	  
- exit
- 
	    Leave the shell.
	  
- help
- 
	    Show this help.
	  
- free
- 
	    Display memory usage.
	  
- load name
- 
	    Load a new document with the given name.
	  
- ls path
- 
	    List contents of path (if given) or the
	    current directory.
	  
- pwd
- 
	    Display the path to the current node.
	  
- quit
- 
	    Leave the shell.
	  
- save name
- 
	    Saves the current document to name if
	    given or to the original name.
	  
- validate
- 
	    Check the document for error.
	  
- write name
- 
	    Write the current node to the given filename.
	  
Debugging Catalogs
Setting the environment variable XML_DEBUG_CATALOG
    using the command "export XML_DEBUG_CATALOG="
    outputs debugging information related to catalog operations.