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  find the command line arguments to my application?
 
  If you are using extended Tcl or Expect, you will find the parameters in
the Tcl variable argv as a list.  Note that in extended Tcl, the name of 
the program is in the Tcl variable programName and NOT in argv[0].  Thanks to
brad@NeoSoft.com (Brad Morrison) and bachww@rtsg.mot.com (Bud Bach) for
this answer.