idlwave-shell-initial-commands

idlwave-shell-initial-commands is a variable defined in `idlw-shell.el'.
Its value is

"!more=0 & defsysv,'!ERROR_STATE',EXISTS=__e & if __e then begin & !ERROR_STATE.MSG_PREFIX=\"% \" & delvar,__e & endif"

• This variable may be risky if used as a file-local variable.

Documentation:
Initial commands, separated by newlines, to send to IDL.
This string is sent to the IDL process by `idlwave-shell-mode' which is
invoked by `idlwave-shell'.

You can customize this variable.