nokogiri

An HTML, XML, SAX and Reader parser.

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}}