         Parameters:  WAIT os-cmd | CONTINUE os-cmd | NEST
  
 allows execution of VAX/VMS DCL by three different options: 
  
  WAIT os-cmd  - Initiates "os-cmd" as a command & waits until done.
  CONT os-cmd  - Initiates "os-cmd" & continues reading commands.
  NEST         - Enters a VAX-like sub-process, and typing "LO"
                 logs off back to edit.
  
 SINGLE-COMMAND LINES -    Both  the  "WAIT" & "CONTINUE" options
 very quickly define the  [UTIL]Symbols.COM  symbols  before  the
 command line  is  performed.    The command line may be up to 63
 characters in length.  Programs which send output to "TT:"  (not
 "SYS$OUTPUT") will not be able to access "TT:". 
  
 MULTIPLE-COMMAND LINES -    The  "NEST" option enters a VAX-like
 subprocess and does allow entry of standard  VAX  DCL  commands.
 It  is  also  the  most efficient method, as it seems to put the
 Editor to sleep.  However, no symbols are  defined  for  "NEST".
 They will  need  to  be  invoked  by  running command files.  To
 return to edit, log off ("LO")  from  the  VAX-like  sub-process
 (subprocess name  is "VAXVMSCLI").  WARNING - entering control-C
 (^C) will kill both the subprocess and the Editor. 
