Have a look in any assmebly HC12 project in the CW ide, there in the compiler/linker/assembler settings is a checkbox "show command line" (or similar) which dumps the complete command line used by this tool to the message window.
Note that the content of the message window can be copied with ctrl-c.
Of course you don't need all the options as used in CW, for example it passes to many access paths to the tools.
Daniel
PS: If you do not have a project, create one with the wizard.
BTW. the tools support both UNIX style / and dos style \ directory separators. I always had problems with the dos style because cygwin's sh treats them as escape character, so best if you work only with UNIX style paths.