Count all nodes in one or more XML documents
xml select --text --template --inp-name --output " " --value-of "count(node())" --nl {{path/to/input1.xml|URI}} {{path/to/input2.xml|URI}}
xml select --text --template --inp-name --output " " --value-of "count(node())" --nl {{path/to/input1.xml|URI}} {{path/to/input2.xml|URI}}