The option as meta key
selection has no effect on the Command (Apple) key. If option as meta key
is selected, then the Option key acts as a Meta key in bash
and elsewhere; just press Option-F. If you de-select it, then there is no Meta key.
If you are running OS X 10.6 (Snow Leopard), Apple supplies a built-in way to change the meaning of the keyboard modifier keys, including Command and Option. Go to System Preferences -> Keyboard
and click on the Modifier Key...
button. A panel will appear that allows you to, for instance, swap the meaning of the Option and Command keys. But, be warned that this is a global option and will apply everywhere on OS X and could lead to some major confusion. If you do that, you will be swimming upstream as noted here. You will likely be best served long-term by getting used to the OS X default of using the Option key as Meta and, if necessary, restoring application defaults (for Emacs
, say) to follow that convention.
FURTHER EDIT: This blog post and program (untested) might be helpful.