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     NAME
          exit - Exit the process

     SYNOPSIS
          exit ?returnCode?
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     DESCRIPTION
          Terminate the process, returning returnCode (an integer) to
          the system as the exit status.  If returnCode isn't
          specified then it defaults to 0.  This command replaces the
          Tcl command by the same name.  It is identical to Tcl's exit
          command except that before exiting it destroys all the
          windows managed by the process.  This allows various cleanup
          operations to be performed, such as removing application
          names from the global registry of applications.


     KEYWORDS
          exit, process