XMLStarlet Toolkit: Transform XML document(s) using XSLT
Usage: PROG tr [<options>] <xsl-file> {-p|-s <name>=<value>} [<xml-file>...]
where
  <xsl-file>      - main XSLT stylesheet for transformation
  <xml-file>      - input XML document file/URL (stdin is used if missing)
  <name>=<value>  - name and value of the parameter passed to XSLT processor
  -p              - parameter is XPATH expression ("'string'" to quote string)
  -s              - parameter is a string literal
<options> are:
  --help or -h    - display help message
  --omit-decl     - omit xml declaration <?xml version="1.0"?>
  --embed or -E   - allow applying embedded stylesheet
  --show-ext      - show list of extensions
  --val           - allow validate against DTDs or schemas
  --net           - allow fetch DTDs or entities over network
#ifdef LIBXML_XINCLUDE_ENABLED
  --xinclude      - do XInclude processing on document input
#endif
  --maxdepth val  - increase the maximum depth
#ifdef LIBXML_HTML_ENABLED
  --html          - input document(s) is(are) in HTML format
#endif