xmllint.md

xmllint

libxml CLI frontend.

Because it is official to the main XML library, looks like the most robust option out there.

Without arguments

Usage:

xmllint min.xml

Checks if:

• well formed
• entity loops like the billion laughs attack

Does not check for DTD validity: use --valid for that.

format

Pretty print:

xmllint --format min.xml

valid

Also check DTD validity:

xmllint --format min.xml

schema

Check XSD validity:

xmllint --schema schema.xsd min.xml

stream

Allows validating large files: http://stackoverflow.com/questions/7528249/tools-to-validate-large-xml-100mb-file/32992580#32992580

Extract data

xpath

Multiple attributes from different elements

Impossible? http://stackoverflow.com/questions/26823736/how-to-parse-out-the-value-of-several-attributes-on-different-elements-with-xmll

xmlstarlet solved it: http://stackoverflow.com/a/32991889/895245

Large files

Validation: --stream.

XPATH Queries: http://stackoverflow.com/questions/30305724/how-to-do-command-line-xpath-queries-in-huge-xml-files TODO impossible?