OPTIONS¶
xmllint accepts the following options (in alphabetical
order):
--auto
Generate a small document for testing purposes.
--catalogs
Use the SGML catalog(s) from SGML_CATALOG_FILES.
Otherwise XML catalogs starting from /etc/xml/catalog or, more specifically,
${sysconfdir}/xml/catalog are used by default.
--compress
Turn on
gzip(1) compression of output.
--copy
Test the internal copy implementation.
--c14n, --c14n11, --exc-c14n
Use the W3C XML Canonicalisation (C14N) to serialize the
result of parsing to stdout. It keeps comments in the result.
--dtdvalid URL
Use the DTD specified by an URL for
validation.
--dtdvalidfpi FPI
Use the DTD specified by a Formal Public Identifier
FPI for validation, note that this will require a catalog exporting
that Formal Public Identifier to work.
--debug
Parse a file and output an annotated tree of the
in-memory version of the document.
--debugent
Debug the entities defined in the document.
--dropdtd
Remove DTD from output.
--dtdattr
Fetch external DTD and populate the tree with inherited
attributes.
--encode ENCODING
Output in the given encoding. Note that this works for
full document not fragments or result from XPath queries.
--format
Reformat and reindent the output. The
XMLLINT_INDENT environment variable controls the indentation. The
default value is two spaces " ").
Especially in the absence of a DTD, this feature has never worked
reliably and is fundamentally broken.
--html
Use the HTML parser.
--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/viewed in a browser.
--huge
Ignore some hardcoded parser limits.
--insert
Test for valid insertions.
--loaddtd
Fetch an external DTD.
--load-trace
Display all the documents loaded during the processing to
stderr.
--max-ampl INTEGER
Set the maximum amplification factor which protects
against exponential entity expansion ("billion laughs"). The default
value is 5. Documents making heavy use of entity expansion may require a
higher value.
--maxmem NNBYTES
Test the parser memory support. NNBYTES is the
maximum number of bytes the library is allowed to allocate. This can also be
used to make sure batch processing of XML files will not exhaust the virtual
memory of the server running them.
--memory
Parse from memory.
--noblanks
Drop ignorable blank spaces.
--nocatalogs
Do not use any catalogs.
--nocdata
Substitute CDATA section by equivalent text nodes.
--nocompact
Do not generate compact text nodes (parser option
XML_PARSE_COMPACT). Only for debugging.
--nodefdtd
Do not set default HTML doctype (parser option
HTML_PARSE_NODEFDTD).
--nodict
Don't use dictionaries (parser option XML_PARSE_NODICT).
Only for debugging.
--noenc
Ignore encoding declaration (parser option
XML_PARSE_IGNORE_ENC).
--noent
Substitute entity values for entity references. By
default, xmllint leaves entity references in place.
--nofixup-base-uris
Don't fix xml:base URIs when processing XIncludes (parser
option XML_PARSE_NOBASEFIX).
--nonet
Do not use the Internet to fetch DTDs or entities.
--noout
Suppress output. By default, xmllint outputs the
result tree.
--nowarning
Do not emit warnings from the parser and/or
validator.
--nowrap
Do not output HTML doc wrapper.
--noxincludenode
Do XInclude processing but do not generate XInclude start
and end nodes.
--nsclean
Remove redundant namespace declarations.
--oldxml10
Use deprecated parsing rules before XML 1.0, 5th
edition.
--output FILE
Define a file path where xmllint will save the
result of parsing. Usually the programs build a tree and save it on stdout,
with this option the result XML instance will be saved onto a file.
--path "PATH(S)"
Use the (space- or colon-separated) list of filesystem
paths specified by PATHS to load DTDs or entities. Enclose
space-separated lists by quotation marks.
--pattern PATTERNVALUE
Used to exercise the pattern recognition engine, which
can be used with the reader interface to the parser. It allows to select some
nodes in the document based on an XPath (subset) expression. Used for
debugging.
--pedantic
Enable additional warnings.
--postvalid
Validate after parsing has completed.
--pretty INTEGER
Value 0 means no formatting, 1 means XML_SAVE_FORMAT
(same as --format), 2 means XML_SAVE_WSNONSIG.
--push
Use the push mode of the parser.
--quiet
Don't print informational messages to stderr.
--recover
Output any parsable portions of an invalid
document.
--relaxng SCHEMA
Use RelaxNG file named SCHEMA for
validation.
--repeat
Repeat 100 times, for timing or profiling.
--sax
Print SAX callbacks (only for debugging).
--sax1
Use deprecated SAX1 interface (only for debugging).
--schema SCHEMA
Use a W3C XML Schema file named SCHEMA for
validation.
--schematron SCHEMA
Use a Schematron file named SCHEMA for
validation.
--shell
Run a navigating shell. Details on available commands in
shell mode are below (see the section called “SHELL
COMMANDS”).
--xpath
"XPath_expression"
Run an XPath expression given as argument and print the
result. In case of a nodeset result, each node in the node set is serialized
in full in the output. In case of an empty node set the "XPath set is
empty" result will be shown and exit code 11 will be returned.. This
feature is EXPERIMENTAL. Implementation details can change without futher
notice.
--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.
--testIO
Test user input/output support.
--timing
Output information about the time it takes xmllint
to perform the various steps.
--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.
--version
--walker
Test the walker module, which is a reader interface but
for a document tree, instead of using the reader API on an unparsed document
it works on an existing in-memory tree. Used for debugging.
--xinclude
Do XInclude processing.
--xmlout
Used in conjunction with --html. Usually when HTML
is parsed the document is saved with the HTML serializer. But with this option
the resulting document is saved with the XML serializer. This is primarily
used to generate XHTML from HTML input.
