xmllint

XML parser and linter that supports XPath, a syntax for navigating XML trees. More information: https://manned.org/xmllint.

  • Return all nodes (tags) named "foo":

xmllint --xpath "//foo" source_file.xml

  • Return the contents of the first node named "foo" as a string:

xmllint --xpath "string(//foo)" source_file.xml

  • Return the href attribute of the second anchor element in an HTML file:

xmllint --html --xpath "string(//a[2]/@href)" webpage.xhtml

  • Return human-readable (indented) XML from file:

xmllint --format source_file.xml

  • Check that an XML file meets the requirements of its DOCTYPE declaration:

xmllint --valid source_file.xml

  • Validate XML against DTD schema hosted online:

xmllint --dtdvalid URL source_file.xml

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