Script language shell lacks in-line editing and history

Created by: subhacom

The MOOSE SLI command-line interface does not handle all the nice features of the GENESIS command-line interface, like control-P for previous command and in-line text editing. This is a hard one to fix because it would involve implementing a lot of operations, and also we would need ncurses or something similar, which is not terribly portable.

Reported by: upibhalla