Lệnh liệt kê file trong thư mục

[root@free02 ~]# ls -al /usr/local/
total 92
drwxr-xr-x. 22 root     root     4096 Jun 14 16:38 .
drwxr-xr-x. 15 root     root     4096 Jun  9 10:20 ..
drwxr-xr-x.  2 root     root     4096 Jul  5 10:56 bin
drwxr-xr-x.  2 root     root     4096 Apr 11  2018 etc
drwxr-xr-x.  3 root     root     4096 Jul  5 10:56 include
drwxr-xr-x.  6 root     root     4096 Jul  5 10:56 lib
drwxr-xr-x.  5 root     root     4096 Jun  9 14:18 lib64
drwxr-xr-x.  2 root     root     4096 Apr 11  2018 libexec
-rw-r--r--   1 root     root     1065 Jul 28  2020 LICENSE
drwxr-xr-x   3 root     root     4096 Jun  9 10:44 man
dr-x--x--x   2 apache   apache   4096 Jun  9 10:47 safe-bin
drwxr-xr-x.  2 root     root     4096 Apr 11  2018 sbin
drwxr-xr-x.  7 root     root     4096 Jul  5 10:56 share
drwxr-xr-x.  8 root     root     4096 Jul  5 10:52 src
drwxr-xr-x   4 root     wheel    4096 Apr 16  2006 sysbk