                                                                shell 
Chapter 3 System Management

UNIX is a multi-user, multi-tasking environment.  LTPlus provides a tool which
allows the user to escape temporarily from the program, perform other
operations, and return to the exact point of departure with no detrimental
effects.  Executing the shell command compels LTPlus to suspend interactive
operations temporarily and open another shell, or partition (the csh shell in
this case), in which the user may interactively function.  To leave the shell
and return to the initial point of departure in LTPlus, press Ctl-D.

shell

    Exit LTPlus temporarily.
     
         shell

    Exit from LTPlus temporarily and open a C shell in the current path.  Ctl-D
    closes the shell, and returns to LTPlus.
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    Options/arguments:

    None
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    Example(s):

    To leave LTPlus for a temporary C shell, enter:

         shell
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    See also:

              set_clear, set_exclude, set_intrsec, set_union
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