files(str)
struct string *str;
The listing, in the style of ls(1), is multi-columnar (if appropriate) and sorted (reading down the columns). If any file matched by the pattern is a directory, its contents are also listed under a separate heading. In this case, files which begin with dot are not listed in keeping with the more modern UNIX tradition. If str is null, only the contents of the current directory are listed.
This function implements the FILES statement.
from The Basmark QuickBASIC Programmer’s Manual by Lawrence Leinweber