FILE ATTRIBUTES:
l[+-]N +/-/= N links
- a[Mwhms][+-](N|'FILE') access time +/-/= N mnths/weeks/hours/mins/secs
+ a[Mwhms][+-](N|'FILE') access time +/-/= N months/weeks/hours/mins/secs
(days if unspecified) if FILE specified,
use as comparison basis; so a+'file.c'
shows files accessed before file.c was