# nokogiri > An HTML, XML, SAX and Reader parser. > More information: . - Parse the contents of a URL or file: `nokogiri {{url|path/to/file}}` - Parse as a specific type: `nokogiri {{url|path/to/file}} --type {{xml|html}}` - Load a specific initialisation file before parsing: `nokogiri {{url|path/to/file}} -C {{path/to/config_file}}` - Parse using a specific encoding: `nokogiri {{url|path/to/file}} --encoding {{encoding}}` - Validate using a RELAX NG file: `nokogiri {{url|path/to/file}} --rng {{url|path/to/file}}`