mode links bytes last-changed name dr-x 2 4 Sep 2 00:05 ./ dr-x 4 4 Sep 2 00:05 ../ -r-- 1 168410 Sep 2 00:05 explaining-bsd_bn-bd.pdf -r-- 1 669102 Sep 2 00:05 explaining-bsd_bn-bd.tar.gz