XSL Utility is also available as a command line tool called xslutil.

This tool is auto-documented. To learn how to use it, simply run it without any argument:

$ xslutil
*** too few arguments
usage: java com.xmlmind.xslutility.CommandLine ?Options?
    out_file in_xml_file xslt_stylesheet ?param=value? ... ?param=value?

Options are:
    -v
        Verbose.
    -out rtf|wml|docx|odt|pdf|ps|pcl
        Specifies the output format. Default: none (the file generated by
        the XSLT style sheet is not processed by XFC or by FOP).
    -enc <encoding>
        Specifies the encoding of the file generated by XFC.
        Default: Cp1252 for RTF, UTF-8 for other output formats.

If needed, specify additional XML catalogs using XSLUtility GUI
or using environment variable XSLU_CATALOGS (see online help).

Example: convert a DocBook document to multi-page HTML (on Unix):

$ xslutil -v out/index.html tests/simple.docb \
    ~/src/xfc/xslu/config/docbook/xsl/html/chunk.xsl base.dir=out/
Compiling stylesheet "/home/hussein/src/xfc/xslu/config/docbook/xsl/html/chunk.xsl"...
Stylesheet compiled in 2.645s.
Transforming input "tests/simple.docb"...
Writing out/index.html for article
Input transformed in 1.626s.
Conversion completed.