XMLLINT(1)							  xmllint Manual							XMLLINT(1)

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
	       | --sgml | --html | --push | --memory | --nowarning
	       | --noblanks | --format | --testIO | --encode encoding
	       | --catalogs | --nocatalogs | --auto | --xinclude
	       | --loaddtd | --dtdattr | --dropdtd | --stream
	       | --chkregister] [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.

       --sgml Use  the DocBook SGML parser. This allows documents written in SGML DocBook to be converted into an in-memory tree and treated as if
	      they were written in XML.

       --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.

       --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 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.

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.

AUTHORS

       John Fleck, Ziying Sherwin, Heiko Rupp.

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