When expanding the
/etc/passwd GECOS field to get the user's full name, should we expand only the first ampersand (
& character), or all ampersands?
In a GECOS field with comma (
,) delimited subfields, should ampersands only be expanded in the first subfield (i.e. the user's full name) or in all subfields?
If the Unix username contains capital letters, should we preserve them in the
& expansion, or should we only capitalize the first letter of the username and lowercase the rest?