In bash shell with emacs key-binding, you can use key combination like M-f, M-b to move one word forward or backward on the shell prompt respectively. Usually, the meta key
Cmd+., Profiles, Keys and choose Left option Key acts as: +Esc.
Profiles
Keys
Left option Key acts as: +Esc
Works for me in emacs, though I'm not sure if it will have any other undesirable effects.