So, if I continuously want to add and remove functions within one shell
>> (running hypothetically forever), do I have to 'manually' delete those empty
>> left-behind files? --- that is, not only use
>> fn name_that_I _don't_need
>> but also
>> rm /env/'fn#name_that_I _don't_need' ?
>>
>
> No.
>

Well... that's an answer, but not very constructive indeed. When do those
files dissapear?
R.