On systems with readline library available you can use the back/forward keys to navigate the history of entered commands. On all systems the last entered command can be repeated by just pressing the <ENTER> key. If your operating system supports it file names will be expanded. Several commands take more that one argument. Quotes may be used to lead to complex expressions being treated as one arument. eg break "* | @" would allow you to se a breakpoint on the template with the name "* | @" The following table describes the terms used in the subsiquent command guide TEMPLATE_NAME : A valid template name contains only ASCI character codes 0x00 to 0x7F. And can be a fully qualified name ie "xsl:templateName". FILENAME : A valid file name local to the system of the user. It can have a "~" prefix on *nix and CYGWIN platforms. Or environment variables under RISC OS URI : A Uniform Resource Identifiers as defined by RFC 2396 MODE_NAME The mode of template which can be fully qualified name ie "xsl:modeName". QNAME : A fully qualified name ie "xsl:localPart" LINENO : A valid line number in associated <FILENAME> NUMBER_OF_FRAMES : A valid line number frames to change position by BREAKPOINT_ID : A valid break point number WATCH_ID : A valid watch expression number as indicated by showwatch command SPEED: speed to walk through code at, between 0 to 9     (Comment): a comment about command meaning or usage { opt1 | opt2 | opt2 .. etc} : Choose one of the opt's XPATH : a xpath selection of node(s) PARAM_ID : a valid parameter number as indicated by showparam command PATH : A path to change working directory to On some operating systems a "~" prefix will be replaced by your home directory path TEXT : Free form text     (no restrictions) COMMAND : A valid command for the xsdbg QNAME : A valid variable/parameter name SOURCE : The stylesheet being/to be executed. See <FILENAME> and <URI> DATA : The xml data(document) being/to be processed by the stylesheet. See <FILENAME> and <URI> DEVICE_PATH : Is a valid terminal on the operating system TTY_LEVEL : Is a valid level of input/output to use Help related :help Running related : {bye|exit| quit}, step, stepup, stepdown, next, continue, run, trace, setoption, options Libxslt parameter related : addparam, delparam, showparam, output, setoption, options Template related : templates, where, frame Break point related : break, showbreak, delete, enable Expression viewing(xpath) : cat Node viewing : ls, dir, du, cat, pwd Variable viewing : globals, locals, cat, addwatch Variable setting: set Node selection : source, data, cd Searching :search Operating system related :chdir, shell, tty File related : output, entities, system, public Disabled file commands: validate, load, save, write, free