fish shell gets somewhat close to this, in that it will show a hint of the most recent similar command from your history. If there is no recent similar command

fish shell gets somewhat close to this, in that it will show a hint of the most recent similar command from your history. If there is no recent similar command it can still tab complete and can infer a completion from help/manpage Edit: BTW this is actually a fantastic idea, I don't know if anything quite does this yet