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Keyboard `!' Commands
The !set variables below affect the `!' commands available from
the keyboard. Commands of this form that are not recognized as
internal commands are assumed to be operating system commands, and are
executed in a separate window under a command shell.
This variable can be set to the name of a command interpreter which
will be used for the `!' and !shellcmd inputs. The interpreter
will be instantiated in its own window. If not given, the shell
program used will be taken from the SHELL environment variable,
and if this variable is not found the default is ``/bin/sh''.
WRspice users can set the shell to ``wrspice'' for quick
access to the full user interface of that program.
Under Microsoft Windows, the value must be a full path name to the
shell executable, and the COMSPEC environment variable is also
consulted for the default shell, after the SHELL variable.
Stephen R. Whiteley