For the developers convenience CLI commands can be entered directly,
but there may be some unexpected behaviour. For example, commands
that query the user will behave as if the user replied yes, breakpoint
command lists are not executed and some CLI commands, such as
if, when and define, prompt for further input with
‘>’, which is not valid MI output.
This feature may be removed at some stage in the future and it is
recommended that front ends use the -interpreter-exec command
(see -interpreter-exec).