xmllint

Background Validate an XML document using a schema. Problem The simplest form of the problem is shown in two files. XML Document <?xml version="1.0"?> <recipe xmlns:r="http://www.namespace.org/recipe"> <r:description> <r:title>sugar cookies</r:title> </r:description> </recipe> XSD Document <?xml version="1.0" encoding="utf-8"?> <xsd:schema version="1.0" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:r="http://www.namespace.org/recipe"> <xsd:complexType name="recipe"> <xsd:choice> <xsd:element name="description" type="descriptionType" minOccurs="1" maxOccurs="1" /> </xsd:choice> </xsd

I'm trying to use xmllint to check my work while developing a basic XSD i.e. XML Schema schema. However it's giving me an error Validation failed: no DTD found. What am I doing wrong? My xmllint command: xmllint --noout --valid --schema simple.xsd lucas-basic.xml lucas-basic.xml:5: validity error : Validation failed: no DTD found ! > ^ lucas-basic.xml validates Test XSD file: <?xml version = "1.0" encoding = "UTF-8"?> <!--Generated by XML Authority. Conforms to w3c http://www.w3.org/2001/XMLSchema--> <xsd:schema xmlns:xsd = "http://www.w3.org/2001/XMLSchema"> <xsd:element name = "vehicles">

I've seen this syntax several places (eg, here ): xmllint --xpath '/plist/array/string/text()' tmp.xml , used to query a particular XML node using an xpath selector. However, I'm getting the error Unknown option --xpath when I try to execute this on my machine (mac os x snow leopard). Looking more closely at the man page for xmllint, I don't see the --xpath option documented... Am I just totally missing something here? xmllint --shell tmp.xml <<<'xpath /plist/array/string/text()' If you need to make xmllint to read stdin: cat /tmp/tmp.xml | xmllint --shell <(cat) <<<'xpath /plist/array/string

I'm trying to query an xml file generated by adium. xmlwf says that it's well formed. By using xmllint's debug option i get the following: $ xmllint --debug doc.xml DOCUMENT version=1.0 encoding=UTF-8 URL=doc.xml standalone=true ELEMENT chat default namespace href=http://purl.org/net/ulf/ns/0.4-02 ATTRIBUTE account TEXT content=foo@bar.com ATTRIBUTE service TEXT compact content=MSN TEXT compact content= ELEMENT event ATTRIBUTE type Everything seems to parse just fine. However, when I try to query even the simplest things, I don't get anything: $ xmllint --xpath '/chat' doc.xml XPath set is